ICD-10-CM 2027
ICD-10 code for nutritional deficiency sequelae
From the official ICD-10-CM alphabetic index entry “Sequelae (of) › nutritional deficiency”. Page updated September 29, 2026.
About coding nutritional deficiency sequelae
The ICD-10-CM code for nutritional deficiency sequelae is E64.9 (Sequelae of unspecified nutritional deficiency). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on E64.9.
Within E64, choose E64.9 (unspecified nutritional deficiency) only when documentation doesn't support a more specific option: protein-calorie malnutrition (E64.0), vitamin A deficiency (E64.1), vitamin C deficiency (E64.2), rickets (E64.3) and other nutritional deficiencies (E64.8).
Code first: condition resulting from (sequela) of malnutrition and other nutritional deficiencies.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific nutritional deficiency sequelae codes (official index)
- specified NEC E64.8 — Sequelae of other nutritional deficiencies
Common questions about nutritional deficiency sequelae ICD-10 codes
What is the ICD-10 code for nutritional deficiency sequelae?
- E64.9 — Sequelae of unspecified nutritional deficiency. More specific codes apply when the documentation supports them: E64.8.
Is E64.9 billable?
- Yes. E64.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E64.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E64.9 as a principal diagnosis.
Is E64.9 a CC or MCC?
- No. E64.9 is neither a CC nor an MCC under MS-DRG v44.0.