D81.810 — Biotinidase deficiency
D81.810 is a billable, specific ICD-10-CM code for biotinidase deficiency. It is valid for submission on a claim.
Risk adjustment
D81.810 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
D81.810 is named in 16 Medicare coverage policies — 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56638Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs)
- A56642Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs)
- A57205Billing and Coding: Oximetry Services
- A57224Billing and Coding: Respiratory Care
How D81.810 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 D81.810.
- Deficiency, deficient›biotinidase
- Immunodeficiency›combined›biotin-dependent carboxylase›biotinidase
Related codes at this level
Codes that share D81.81. If D81.810 is not quite right, the correct code is usually one of these.
Questions about D81.810
- Is D81.810 a billable ICD-10-CM code?
- Yes. D81.810 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D81.810 sit in the tabular list?
- Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Certain disorders involving the immune mechanism (D80-D89).