E63.9 — Nutritional deficiency, unspecified
E63.9 is a billable, specific ICD-10-CM code for nutritional deficiency, unspecified. It is valid for submission on a claim.
Other codes that can never be billed with E63.9
These codes carry an Excludes1 note pointing at E63.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E63.9 alone.
- E46Unspecified protein-calorie malnutrition
Risk adjustment
E63.9 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
E63.9 is named in 1 Medicare coverage policy — 1 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
How E63.9 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 E63.9.
- Nutrition deficient or insufficient
- Cardiomyopathy›nutritional
- Deficiency, deficient›diet
- Deficiency, deficient›nutrition, nutritional
- Dietary›inadequacy or deficiency
- Disease, diseased›nutritional
- Disturbance›nutritional
- Gastritis›due to diet deficiency
- Inadequate, inadequacy›diet(causing nutritional deficiency)
- Insufficiency, insufficient›dietary
- Polyneuritis, polyneuritic›nutritional
- Polyneuropathy›nutritional NEC
Related codes at this level
Codes that share E63. If E63.9 is not quite right, the correct code is usually one of these.
Questions about E63.9
- Is E63.9 a billable ICD-10-CM code?
- Yes. E63.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E63.9 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Other nutritional deficiencies (E50-E64).