D74.9 ICD-10-CM Code: Methemoglobinemia, unspecified
D74.9 is the billable ICD-10-CM code for “Methemoglobinemia, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
D74.9Methemoglobinemia, unspecified
ICD-10-CM diagnosis code · United States clinical modification
More specific than D74.9
View categoryD74.9 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.
Where D74.9 sits
- 1
Chapter 3
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- 2
Section
Other disorders of blood and blood-forming organs (D70-D77)
- 3
Category D74
Methemoglobinemia
- 4
Code D74.9
Methemoglobinemia, unspecified
Notes for this code
Inclusion terms
No inclusion terms are listed for D74.9.
Code first
No “code first” instruction is listed for D74.9.
Use additional code
No “use additional code” instruction is listed for D74.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for D74.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for D74.9.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code D74.9 mean?
D74.9 is the FY 2027 U.S. ICD-10-CM code for “Methemoglobinemia, unspecified.”
Is D74.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, D74.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is D74.9 located in ICD-10-CM?
D74.9 is listed in Chapter 3, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), within Other disorders of blood and blood-forming organs (D70-D77) (D70–D77), under category D74, Methemoglobinemia.
What coding notes are listed for D74.9?
No inclusion terms are listed for D74.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.