E64.0 Sequelae of protein-calorie malnutrition

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

Excludes2 (not included here)

• retarded development following protein-calorie malnutrition (E45)

Applies from E64 Sequelae of malnutrition and other nutritional deficiencies

Code first

• condition resulting from (sequela) of malnutrition and other nutritional deficiencies

Notes

• This category is to be used to indicate conditions in categories E43, E44, E46, E50-E63 as the cause of sequelae, which are themselves classified elsewhere. The 'sequelae' include conditions specified as such; they also include the late effects of diseases classifiable to the above categories if the disease itself is no longer present

Risk adjustment (HCC)

• CMS-HCC V22: HCC 21 — Protein-Calorie Malnutrition
• ESRD V24: HCC 21

MS-DRG index

Defines the logic of DRG(s) 640-641 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 263.9 Unspecified protein-calorie malnutrition (approximate)

Code annotations containing back-references to E64.0

Back-references to E64

• Type 1 Excludes: E61 Deficiency of other nutrient elements ("sequelae of malnutrition and other nutritional deficiencies (E64.-)")
• Type 2 Excludes: E63 Other nutritional deficiencies ("sequelae of malnutrition and other nutritional deficiencies (E64.-)")
• Code First: G63 Polyneuropathy in diseases classified elsewhere ("nutritional deficiency (E40-E64)")
• Type 1 Excludes: Z72.4 Inappropriate diet and eating habits ("malnutrition and other nutritional deficiencies (E40-E64)")

Diagnosis Index entries for E64.0

• Sequelae (of) › protein-energy malnutrition

Nearby codes

• E64 Sequelae of malnutrition and other nutritional deficiencies
• E64.0 Sequelae of protein-calorie malnutrition (this code)
• E64.1 Sequelae of vitamin A deficiency
• E64.2 Sequelae of vitamin C deficiency
• E64.3 Sequelae of rickets
• E64.8 Sequelae of other nutritional deficiencies
• E64.9 Sequelae of unspecified nutritional deficiency