2026 ICD-10-CM Diagnosis Code D74Methemoglobinemia

ICD-10-CM Codes›D50–D89›D70-D77›D74

ICD-10-CM D74
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D74 is a non-billable ICD-10-CM category code for methemoglobinemia, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D74.0, D74.8, and D74.9.

Code Identity

ICD-10-CM Code
D74
Billable Status
No — Non-Billable Category
Code Describes
Methemoglobinemia
Chapter
D70-D77
Other disorders of blood and blood-forming organs

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD70-D77Other disorders of blood and blood-forming organs
CategoryD74Methemoglobinemia
This CodeD74Methemoglobinemia

Specific Coding for MethemoglobinemiaOverview

Non-specific codes like D74 require more characters. Use one of these billable codes instead:

  • Use D74.0 for Congenital methemoglobinemia

  • Use D74.8 for Other methemoglobinemias

  • Use D74.9 for Methemoglobinemia, unspecified

Clinical InformationClinical

  • Methemoglobinemia

    the presence of methemoglobin in the blood, resulting in cyanosis. a small amount of methemoglobin is present in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function reversibly as an oxygen carrier. methemoglobinemia may be due to a defect in the enzyme nadh methemoglobin reductase (an autosomal recessive trait) or to an abnormality in hemoglobin m (an autosomal dominant trait). (dorland, 27th ed)

Patient EducationClinical

Blood Disorders

Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D74Overview

Is D74 (Methemoglobinemia) a billable code?

No. This is a category header that groups the codes for methemoglobinemia, and headers cannot be submitted on claims. Claims for methemoglobinemia need a more specific code from this category, such as D74.0, D74.8, and D74.9.