E64.9 — Sequelae of unspecified nutritional deficiency
E64.9 is a billable, specific ICD-10-CM code for sequelae of unspecified nutritional deficiency. It is valid for submission on a claim.
Other codes that can never be billed with E64.9
These codes carry an Excludes1 note pointing at E64.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E64.9 alone.
- E61Deficiency of other nutrient elements
Risk adjustment
E64.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E64.9 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
How E64.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E64.9.
- Sequelae›nutritional deficiency
Code history
E64.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share E64. If E64.9 is not quite right, the correct code is usually one of these.
Questions about E64.9
- Is E64.9 a billable ICD-10-CM code?
- Yes. E64.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E64.9 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Other nutritional deficiencies (E50-E64).