D74Header code — not billable
Methemoglobinemia
- Chapter
- 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- Category
- D74
- Effective date
- October 1, 2026
Related codes in category D74
Frequently asked questions
What is ICD-10 code D74?
D74 is an ICD-10-CM diagnosis code for Methemoglobinemia.
Is D74 a billable code?
No. D74 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is D74 in?
D74 falls under Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
When did D74 become effective?
D74 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to D74?
D74 belongs to category D74, which includes 3 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.