D74.8 — Other methemoglobinemias
D74.8 is a billable, specific ICD-10-CM code for other methemoglobinemias. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Acquired methemoglobinemia (with sulfhemoglobinemia)
- Toxic methemoglobinemia
Risk adjustment
D74.8 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
D74.8 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56767Billing and Coding: Heavy Metal Testing
- A58801Billing and Coding: Pharmacogenomics Testing
- A58812Billing and Coding: Pharmacogenomics Testing
- A59915Billing and Coding: Pharmacogenomic Testing
How D74.8 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 D74.8.
- Nitrosohemoglobinemia
- Stokvis disease(-Talma)
- Sulfhemoglobinemia, sulphemoglobinemia(acquired) (with methemoglobinemia)
- Cyanosis›enterogenous
- Methemoglobinemia›acquired(with sulfhemoglobinemia)
- Methemoglobinemia›toxic
- Sensitive, sensitivity›methemoglobin
Related codes at this level
Codes that share D74. If D74.8 is not quite right, the correct code is usually one of these.
Questions about D74.8
- Is D74.8 a billable ICD-10-CM code?
- Yes. D74.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D74.8 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 Other disorders of blood and blood-forming organs (D70-D77).