E71.448 — Other secondary carnitine deficiency
E71.448 is a billable, specific ICD-10-CM code for other secondary carnitine deficiency. It is valid for submission on a claim.
Risk adjustment
E71.448 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
E71.448 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A57123Billing and Coding: Nerve Conduction Studies and Electromyography
How E71.448 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 E71.448.
- Deficiency, deficient›carnitine›secondary
Related codes at this level
Codes that share E71.44. If E71.448 is not quite right, the correct code is usually one of these.
Questions about E71.448
- Is E71.448 a billable ICD-10-CM code?
- Yes. E71.448 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E71.448 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).