Sequelae of Protein-Calorie Malnutrition (ICD-11: 5B60) - Complete Clinical Coding Guide

1. Introduction

The sequelae of protein-calorie malnutrition represent a set of permanent or long-lasting clinical manifestations that persist after an episode of protein-energy malnutrition. This ICD-11 code 5B60 identifies pathological conditions resulting from previous periods of severe nutritional deprivation, even when the current nutritional status has already been restored or improved.

Protein-calorie malnutrition, also known as protein-energy malnutrition (PEM), occurs when there is inadequate intake of proteins and calories to meet the metabolic needs of the body. When prolonged or severe, especially during critical periods of development such as childhood and pregnancy, it can leave permanent sequelae that affect multiple organ systems.

The clinical importance of this code lies in the recognition that malnutrition is not merely a transient condition. Its consequences can persist throughout life, affecting growth, cognitive development, immune function, reproductive capacity, and overall quality of life. It is estimated that millions of people worldwide live with sequelae from previous episodes of malnutrition, particularly in regions with chronic food insecurity or during periods of humanitarian crisis.

From a public health perspective, appropriate coding of the sequelae of protein-calorie malnutrition enables proper epidemiological monitoring, health resource planning, evaluation of long-term nutritional interventions, and recognition of ongoing medical support needs for affected populations. Accurate documentation also facilitates research on the lasting effects of malnutrition and development of more effective preventive strategies.

2. Correct ICD-11 Code

Code: 5B60

Description: Sequelae of protein-energy malnutrition

Parent category: null - Sequelae of malnutrition or of certain specified nutritional deficiencies

Official definition: Refers to a pathological condition resulting from protein-energy malnutrition

This code belongs to the chapter on nutritional and metabolic conditions of ICD-11, specifically to the section dealing with sequelae of nutritional deficiencies. The classification as "sequela" indicates that the code should be used when current clinical manifestations are a direct consequence of a previous episode of protein-energy malnutrition, regardless of how much time has elapsed since the acute episode.

The term "sequela" implies that the original acute condition has already been resolved or is inactive, but left permanent or long-lasting consequences. Therefore, code 5B60 should not be used for active cases of protein-energy malnutrition, but rather for the residual complications that persist after the acute period.

The hierarchical structure of the code allows tracking of both specific sequelae of protein-energy malnutrition and nutritional sequelae in general, facilitating epidemiological analyses at different levels of specificity. This organization reflects the growing recognition in modern medicine that the consequences of malnutrition can be as clinically significant as the acute condition itself.

3. When to Use This Code

Code 5B60 should be applied in specific clinical scenarios where there is clear evidence of permanent or prolonged sequelae resulting from previous protein-energy malnutrition:

Scenario 1: Permanent short stature following kwashiorkor or infantile marasmus An adult patient with documented history of severe protein-energy malnutrition during childhood presents with stature significantly below expected for their family genetic potential. Endocrinological evaluation excludes primary hormonal or genetic causes. Clinical history reveals an episode of kwashiorkor at 2 years of age during a period of food insecurity. The growth deficit is attributed to sequelae from the previous nutritional episode.

Scenario 2: Cognitive deficit related to perinatal malnutrition An 8-year-old child presents with learning difficulties and cognitive development below expected levels. Neurological investigation excludes structural or genetic causes. Maternal history reveals severe malnutrition during pregnancy and the first two years of the child's life. Neuropsychological assessments identify patterns consistent with early nutritional deprivation. Code 5B60 is appropriate for documenting cognitive sequelae from perinatal protein-energy malnutrition.

Scenario 3: Persistent immunological dysfunction post-malnutrition A patient with history of prolonged protein-energy malnutrition during adolescence, now with restored nutritional status, continues to present with recurrent infections and suboptimal immune response. Immunological studies demonstrate permanent alterations in T cell function and antibody production. Other causes of immunodeficiency have been excluded. Current manifestations are sequelae from previous malnutrition.

Scenario 4: Reproductive complications related to past malnutrition A woman of reproductive age with history of severe malnutrition during puberty presents with persistent menstrual irregularities and difficulty conceiving. Gynecological evaluation reveals suboptimal ovarian development and diminished ovarian reserve. Endocrine investigation excludes primary causes. Alterations are attributed to sequelae from malnutrition during the critical period of reproductive development.

Scenario 5: Early-onset osteoporosis secondary to previous malnutrition A young adult presents with significantly reduced bone mineral density and fragility fractures. History reveals prolonged episode of protein-energy malnutrition during the critical period of bone formation in adolescence. Primary metabolic causes of osteoporosis have been excluded. Current bone condition represents sequela from nutritional deprivation during the critical window of skeletal development.

Scenario 6: Permanent metabolic alterations post-malnutrition A patient presents with insulin resistance and metabolic syndrome at a relatively young age. History reveals severe protein-energy malnutrition in early childhood followed by rapid nutritional recovery. Studies suggest altered metabolic programming secondary to early malnutrition, resulting in predisposition to metabolic disorders. Code 5B60 documents the relationship between current manifestations and the previous nutritional episode.

4. When NOT to Use This Code

It is fundamental to distinguish situations where code 5B60 is not appropriate:

Active protein-calorie malnutrition: When the patient is currently in a state of protein-calorie malnutrition, codes for the acute condition should be used, not for sequelae. Code 5B60 is reserved for residual consequences after resolution of the acute episode.

Sequelae of specific nutritional deficiencies: When manifestations are sequelae of specific vitamin or mineral deficiencies (such as vitamin A, vitamin C, vitamin D), specific codes for these sequelae should be used (5B61, 5B62, etc.), not code 5B60 which is specific for protein-calorie malnutrition.

Genetic or congenital conditions: Short stature, cognitive deficit, or other manifestations resulting from genetic, chromosomal, or congenital causes unrelated to malnutrition should be coded with their specific codes, even if there is concomitant history of malnutrition.

Eating disorders: Sequelae of eating disorders such as anorexia nervosa or bulimia nervosa have specific codes within the classification of mental and behavioral disorders and should not be coded as 5B60, even when there is a malnutrition component.

Malnutrition secondary to other diseases: When malnutrition and its sequelae are secondary to primary medical conditions (such as gastrointestinal diseases, neoplasms, chronic infections), the primary code should reflect the underlying disease, with malnutrition as a secondary condition when appropriate.

Transitory manifestations: Alterations that resolve completely with restoration of nutritional status should not be coded as sequelae. The term "sequela" implies persistence of manifestations beyond the phase of nutritional recovery.

5. Step-by-Step Coding Process

Step 1: Assess diagnostic criteria

To use code 5B60 appropriately, it is necessary to confirm three essential elements:

Documented history of protein-caloric malnutrition: There must be clear evidence of a previous episode of protein-energy malnutrition. This may include previous medical records, documentation of weight and height during the period in question, history of associated conditions such as kwashiorkor or marasmus, or reliable clinical history of severe nutritional deprivation.

Current clinical manifestations: The patient must present signs, symptoms, or examination findings that represent permanent or prolonged consequences of previous malnutrition. These may include growth deficit, cognitive alterations, immune dysfunction, metabolic alterations, or other systemic manifestations.

Established causal relationship: There must be a plausible temporal and pathophysiological connection between the malnutrition episode and current manifestations. Alternative causes for the manifestations must be adequately investigated and excluded when possible.

The assessment should include detailed clinical history with focus on periods of nutritional deprivation, complete physical examination, current and historical anthropometric evaluation when available, and appropriate complementary investigations to characterize the specific sequelae present.

Step 2: Verify specifiers

Although code 5B60 does not have formal subclassifications in the current ICD-11 structure, clinical documentation must specify:

Nature of sequelae: Clearly describe which systems or functions are affected (growth, cognitive development, immune function, metabolism, reproductive system, skeletal system, etc.).

Critical period affected: Identify when the malnutrition occurred (perinatal period, early childhood, middle childhood, adolescence, adulthood), as this influences the type and severity of sequelae.

Severity of manifestations: Document the functional impact of sequelae on daily life and patient capacity, using appropriate assessment instruments when available.

Duration since acute episode: Record how much time has elapsed since resolution of the acute malnutrition episode, which helps characterize the permanent nature of the sequelae.

Step 3: Differentiate from other codes

5B61 - Sequelae of vitamin A deficiency: Use this code when manifestations are specifically related to previous vitamin A deficiency (such as permanent night blindness, residual xerophthalmia, or irreversible ocular alterations). Unlike 5B60, 5B61 requires evidence of specific vitamin A deficiency, not just general protein-caloric malnutrition.

5B62 - Sequelae of vitamin C deficiency: This code is appropriate for sequelae of previous scurvy, such as permanent dental alterations, scars from previous hemorrhages, or bone deformities resulting from infantile scurvy. The fundamental difference is the specificity of vitamin C deficiency versus general protein-energy malnutrition.

5B63 - Excess tumor androgen of rickets: Despite the potentially confusing name in this translation, this code refers to specific sequelae of rickets, which is primarily related to vitamin D deficiency and alterations in calcium and phosphorus metabolism. It manifests mainly with residual skeletal deformities. It differs from 5B60 by its specific etiology (vitamin D deficiency) and predominantly skeletal manifestations.

Correct differentiation requires careful analysis of specific nutritional history and the pattern of clinical manifestations. In some cases, multiple codes may be appropriate if the patient presents sequelae from different nutritional deficiencies.

Step 4: Necessary documentation

Adequate documentation to justify the use of code 5B60 must include:

Checklist of mandatory information:

Detailed history of the malnutrition episode (when it occurred, duration, severity, context)
Objective evidence of the previous episode (medical records, historical anthropometric data)
Clear description of current manifestations and their permanent or prolonged nature
Investigation results that characterize the specific sequelae
Documented exclusion of alternative causes for current manifestations
Establishment of causal nexus between previous malnutrition and current manifestations
Assessment of functional impact of sequelae
Current nutritional status demonstrating resolution or improvement of acute malnutrition

Adequate record in medical chart: The record must clearly narrate the temporal history, connecting the malnutrition episode to current manifestations, document the clinical reasoning that establishes the causal relationship, and justify the choice of code 5B60 specifically, differentiating from other diagnostic possibilities.

6. Complete Practical Example

Clinical Case

Initial presentation: A 15-year-old male patient presents to pediatric endocrinology clinic referred for short stature. The mother reports concern because the adolescent is significantly shorter than his peers and his siblings were at the same age. The patient denies current symptoms other than social embarrassment related to his height. There are no complaints of headache, visual changes, gastrointestinal symptoms, or other systemic symptoms.

Relevant past history: Family history reveals that the father measures 178 cm and the mother 165 cm, with older siblings having normal heights (20-year-old brother with 176 cm, 18-year-old sister with 163 cm). The mother reports that the patient was born with adequate weight and length, but between 18 months and 4 years of age, the family experienced severe food insecurity during a regional economic crisis. During this period, the patient had a documented episode of severe protein-calorie malnutrition, with hospital admission at 2.5 years for marasmus. After this period, the family situation improved and the patient regained weight, but the mother notes that he never "caught up" with expected growth.

Evaluation performed: Physical examination: Weight 45 kg (10th percentile), height 152 cm (below 3rd percentile for age and sex), normal body proportions, Tanner pubertal development 3-4 (appropriate for age), without dysmorphisms or other physical examination findings.

Complementary investigation:

Bone age: 14 years (compatible with chronological age)
Thyroid function: normal
IGF-1 and IGFBP-3: lower limits of normal
Karyotype: 46,XY (normal)
GH stimulation test: normal response
Celiac panel: negative
Complete blood count and general biochemistry: normal
Growth curve review: shows marked deceleration between 18 months and 4 years, with partial subsequent recovery, but trajectory always below the growth channel expected for genetic potential

Diagnostic reasoning: The extensive evaluation ruled out endocrine causes (normal thyroid function, normal growth hormone production), genetic causes (normal karyotype, no dysmorphic syndrome), and other medical causes of short stature (negative celiac disease, no chronic disease). The clear history of severe protein-calorie malnutrition during a critical growth period (18 months to 4 years), temporally coinciding with the documented growth deceleration, establishes a plausible causal relationship. The bone age compatible with chronological age and adequate pubertal development indicate that there is no significant potential for remaining catch-up growth.

Coding justification: The permanent height deficit is a direct sequel of the protein-calorie malnutrition episode during the critical growth window. Current nutritional status is adequate, but the consequences of the previous episode persist permanently.

Step-by-Step Coding

Criteria analysis:

Documented history of protein-calorie malnutrition: ✓ (marasmus documented at 2.5 years)
Current clinical manifestations: ✓ (significant short stature)
Established causal relationship: ✓ (temporally and pathophysiologically plausible, alternative causes excluded)

Code chosen: 5B60 - Sequelae of protein-calorie malnutrition

Complete justification: Code 5B60 is appropriate because:

The current condition (short stature) is a permanent consequence of a previous protein-calorie malnutrition episode
The acute malnutrition was resolved, but left a permanent sequel
Adequate investigation ruled out other causes of short stature
The temporal relationship between malnutrition (18 months to 4 years) and impact on growth is documented
The deficit is permanent, without significant potential for recovery

Complementary codes: In this case, one may consider adding a code for short stature as a clinical manifestation, if the coding system allows multiple codes, to facilitate epidemiological and clinical tracking. Narrative documentation should detail the nature of the specific sequel.

7. Related Codes and Differentiation

Within the Same Category

5B61: Sequelae of vitamin A deficiency

When to use vs. 5B60: Use 5B61 when sequelae are specifically attributable to vitamin A deficiency, manifesting primarily as permanent ophthalmologic alterations (irreversible night blindness, residual Bitot spots, xerophthalmia with corneal sequelae, or blindness from keratomalacia). The history should document specific vitamin A deficiency, not merely general protein-caloric malnutrition.

Main difference: 5B60 refers to sequelae of combined protein and caloric deficiency, while 5B61 is specific to vitamin A deficiency. Clinical manifestations are distinct: 5B60 typically affects growth, cognitive development, immunity, and general metabolism, while 5B61 manifests predominantly with ophthalmologic sequelae. A patient may have both codes if there is evidence of both deficiencies with their respective sequelae.

5B62: Sequelae of vitamin C deficiency

When to use vs. 5B60: Use 5B62 for sequelae of previous scurvy, including permanent dental alterations (tooth loss, enamel defects), scars from previous cutaneous or muscular hemorrhages, bone deformities resulting from subperiosteal hemorrhages in childhood, or other residual manifestations specific to severe vitamin C deficiency.

Main difference: 5B62 requires specific history of scurvy or severe vitamin C deficiency, with characteristic manifestations such as hemorrhages, gingival and dental alterations, and wound healing problems. 5B60 refers to general protein-energy malnutrition. The sequelae differ in nature: 5B62 involves mainly residual hemorrhagic manifestations and connective tissue alterations, while 5B60 has a broader spectrum of systemic sequelae.

5B63: Rickets

When to use vs. 5B60: Despite potentially confusing translation, this code refers to sequelae of rickets, primarily related to vitamin D deficiency. Use 5B63 when there are residual skeletal deformities from previous rickets, such as bowing of lower limbs, thoracic deformities (bell chest), residual rachitic rosary, or other permanent bone alterations resulting from rickets in childhood.

Main difference: 5B63 is specific to sequelae of rickets (vitamin D deficiency with alterations in calcium and phosphorus metabolism), manifesting with characteristic skeletal deformities. 5B60 refers to protein-caloric malnutrition with a broader spectrum of sequelae. The manifestations are distinct: 5B63 presents specific bone deformities, while 5B60 may affect multiple systems without the characteristic skeletal pattern of rickets.

Differential Diagnoses

Familial or constitutional short stature: Differentiated by family history of short stature, absence of significant malnutrition history, and growth curve consistently in the same channel since birth, without abrupt deceleration.

Growth hormone deficiency: Distinguished by abnormal GH stimulation tests, low IGF-1 levels, and response to recombinant GH treatment. The history may not include significant malnutrition.

Malabsorption syndrome: Characterized by persistent gastrointestinal symptoms, alterations in malabsorption tests, and response to correction of the underlying cause, unlike the permanent sequelae of previous malnutrition.

Hypothyroidism: Differentiated by altered thyroid function, other symptoms of hypothyroidism, and response to hormone replacement.

Appropriate differentiation requires complete clinical evaluation and appropriate investigation to establish the correct diagnosis and adequate coding.

8. Differences with ICD-10

In ICD-10, sequelae of malnutrition were coded in a less specific manner. The closest code would be E64.0 - Sequelae of protein-calorie malnutrition, which corresponds directly to 5B60 in ICD-11.

Main changes in ICD-11:

The structure of ICD-11 offers more logical and hierarchical organization of nutritional conditions and their sequelae. The categorization is clearer, facilitating differentiation between acute conditions and their sequelae. The terminology has been updated, with preference for "protein-calorie malnutrition" over older terms, reflecting current pathophysiological understanding.

ICD-11 also allows greater flexibility in coding multiple conditions and specifiers, facilitating more complete and accurate documentation of clinical manifestations. The coding system is more intuitive, with a structure that facilitates navigation and selection of the appropriate code.

Practical impact of these changes:

For healthcare professionals, the transition to ICD-11 requires familiarization with the new structure, but offers benefits in terms of diagnostic accuracy and ease of documentation. Health information systems need to be updated to accommodate the new coding, but gain enhanced analytical capability.

From an epidemiological standpoint, the greater specificity of ICD-11 allows more precise tracking of malnutrition sequelae, facilitating evaluation of public health interventions and resource planning. International comparability is maintained through correspondence tables between ICD-10 and ICD-11, allowing temporal trend analyses.

For administrative and reimbursement purposes, the transition may require adjustments in payment and authorization systems, but greater diagnostic clarity can facilitate justifications for necessary treatments and follow-up.

9. Frequently Asked Questions

1. How is the diagnosis of sequelae of protein-caloric malnutrition made?

The diagnosis requires three essential components: documentation of a previous episode of protein-caloric malnutrition (through medical records, reliable clinical history, or indirect evidence such as documented growth deceleration); identification of current clinical manifestations that represent permanent or prolonged consequences; and establishment of a causal relationship between the malnutrition episode and current manifestations. The evaluation includes detailed clinical history, complete physical examination, review of historical anthropometric data when available, and appropriate complementary investigations to characterize the specific sequelae and exclude alternative causes. The nature of the investigations varies according to the manifestations: endocrine evaluation for growth deficit, neuropsychological evaluation for cognitive deficit, immunological studies for immune dysfunction, bone densitometry for skeletal alterations, etc.

2. Are sequelae of protein-caloric malnutrition reversible?

By definition, the term "sequela" implies permanent or very long-lasting manifestations that persist after resolution of the acute condition. Some sequelae may be partially reversible with appropriate interventions, especially when identified early. For example, some degree of growth recovery ("catch-up growth") may occur in children when nutrition is restored, although often incomplete if malnutrition occurred during critical periods. Cognitive deficits may be partially ameliorated with appropriate stimulation and educational support, but often persist to some degree. Metabolic alterations may respond to lifestyle modifications and medical interventions, but the altered predisposition may remain. Some sequelae, such as height deficit in adults or permanent structural alterations, are irreversible. Reversibility depends on the specific nature of the sequela, the age at which malnutrition occurred, the duration and severity of nutritional deprivation, and the timeliness and adequacy of interventions.

3. Is treatment for sequelae of malnutrition available in public health systems?

The availability of treatment varies according to the health system and geographic region. In many public health systems, there is coverage for evaluation and treatment of malnutrition sequelae, recognizing the public health importance of these conditions. Treatment is typically multidisciplinary, potentially involving nutritionists for continued nutritional optimization, endocrinologists for hormonal evaluation and consideration of specific therapies, neurologists or psychologists for cognitive deficits, physical therapists and orthopedists for skeletal alterations, and other specialists according to specific manifestations. Many systems offer nutritional support, specialized medical follow-up, rehabilitation, and educational support when appropriate. The extent of coverage and access may vary, with some specialized treatments having more limited availability or requiring specific authorizations. Public health programs focused on child nutrition often include components for identification and management of malnutrition sequelae.

4. How long does treatment for sequelae of protein-caloric malnutrition last?

The duration of treatment varies widely depending on the nature and severity of the sequelae. Some manifestations require follow-up and interventions throughout life. For example, cognitive deficits may require continuous educational support throughout schooling. Metabolic alterations may require long-term monitoring and management to prevent complications such as diabetes or cardiovascular disease. Growth deficits in children are followed until the end of linear growth, with periodic reassessments. Immune dysfunction may require continuous surveillance and proactive management of infections. Treatment is not typically "curative" in the sense of completely eliminating the sequelae, but rather optimizing function, preventing additional complications, and maximizing quality of life. The frequency of follow-up varies: it may be intensive initially with frequent visits, becoming less frequent as the situation stabilizes, but generally maintaining some level of long-term follow-up.

5. Can this code be used in medical certificates and official documents?

Yes, code 5B60 can and should be used in official medical documentation when appropriate, including medical certificates, reports for health or social benefits purposes, documentation for special educational services, and other contexts where precise diagnostic coding is necessary. The use of the code in official documents serves to formally establish the diagnosis, justify needs for treatment or special accommodations, document for legal or administrative purposes the relationship between current manifestations and previous malnutrition episode, and facilitate access to appropriate services and supports. It is important that the documentation include not only the code, but also clear narrative description of the specific manifestations and their functional impact. In some contexts, it may be useful to include additional codes that describe the specific manifestations (short stature, cognitive deficit, etc.) in addition to the sequela code, for greater clarity. The documentation should always be based on adequate clinical evaluation and objective evidence.

6. Will children who had malnutrition always have permanent sequelae?

Not necessarily. The occurrence and severity of sequelae depend on multiple factors. The period of development during which malnutrition occurred is critical: malnutrition during periods of rapid growth and development (perinatal period, early childhood, puberty) has greater potential to leave permanent sequelae. The severity and duration of malnutrition are also important determinants: brief and less severe episodes are less likely to cause permanent damage. The timeliness and adequacy of nutritional intervention significantly influence outcomes: rapid and complete nutritional recovery, especially when accompanied by appropriate stimulation, can prevent or minimize sequelae. Individual factors such as genetics, presence of concomitant infections, and other medical conditions also affect susceptibility to sequelae. Many children who experience malnutrition episodes, when adequately treated, achieve complete recovery without significant permanent sequelae. Longitudinal follow-up is important to identify early any emerging sequelae and intervene appropriately.

7. Is there a difference between malnutrition sequelae in adults versus children?

Yes, there are important differences. In children, malnutrition during critical periods of growth and development can affect processes that do not occur in adults, resulting in sequelae such as linear growth deficit, alterations in brain development with permanent cognitive impact, and altered metabolic programming that affects health throughout life. The developing brain is particularly vulnerable, with critical periods where nutritional deprivation can cause permanent structural and functional alterations. In adults, although malnutrition can have serious consequences, the potential for certain types of permanent sequelae is different, as growth and development have already been completed. Adults may develop sequelae such as permanent metabolic alterations, persistent immune dysfunction, or alterations in specific organs, but will not have linear growth deficit or alterations in structural brain development. The capacity for recovery also differs: children generally have greater plasticity and recovery potential, especially when intervention occurs early, while adults may have more limited recovery of certain functions. Both groups can develop significant sequelae, but the specific nature of the sequelae differs according to the age at which malnutrition occurred.

8. How to differentiate sequelae of malnutrition from other causes of short stature or cognitive deficit?

Differentiation requires systematic and careful clinical evaluation. Clinical history is fundamental: any period of nutritional deprivation should be documented in detail, including its duration, severity and period of occurrence, as well as family history of genetic conditions, early development, and developmental milestones. Review of historical anthropometric data is valuable: growth curves showing deceleration during documented malnutrition period followed by partial recovery suggest nutritional sequela, while growth consistently in the same channel since birth suggests constitutional or genetic cause. Complementary investigations are essential to exclude other causes: complete endocrine evaluation rules out hormonal causes, genetic studies identify genetic syndromes, malabsorption evaluation identifies gastrointestinal causes, and neuroimaging can identify structural causes of cognitive deficit. Temporal relationship is important: manifestations should have plausible temporal relationship with the malnutrition episode. Response to interventions also helps: lack of response to hormonal replacement in case of short stature supports nutritional versus endocrine origin. Multidisciplinary evaluation is often necessary to establish the correct diagnosis, combining expertise from different specialties.

Conclusion

The ICD-11 code 5B60 for sequelae of protein-caloric malnutrition is an essential tool for properly documenting the long-term consequences of protein-energy malnutrition. Precise coding requires clear understanding of the definition of "sequela," careful evaluation of clinical history and current manifestations, and appropriate differentiation from other conditions. Proper recognition and documentation of these sequelae are fundamental to ensure appropriate follow-up, access to necessary resources, and epidemiological monitoring that informs public health policies aimed at prevention and management of malnutrition and its lasting consequences.

External References

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References verified on 2026-02-04

Sequelae of Protein-Calorie Malnutrition

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