E72.11 — Homocystinuria
E72.11 is a billable, specific ICD-10-CM code for homocystinuria. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Cystathionine synthase deficiency
Other codes that can never be billed with E72.11
These codes carry an Excludes1 note pointing at E72.11. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E72.11 alone.
- D68.6Other thrombophilia
Risk adjustment
E72.11 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
E72.11 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.
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
How E72.11 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 E72.11.
- Cystathionine synthase deficiency
- Homocystinuria
- Hyperhomocysteinemia
- Disorder›amino-acid›homocystinuria
- Disorder›metabolism NOS›amino-acid›sulfur-bearing›homocystinuria
Related codes at this level
Codes that share E72.1. If E72.11 is not quite right, the correct code is usually one of these.
Questions about E72.11
- Is E72.11 a billable ICD-10-CM code?
- Yes. E72.11 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E72.11 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).