2027 ICD-10-CM Diagnosis Code D74Methemoglobinemia

ICD-10-CM Codes›D50–D89›D70-D77›D74

ICD-10-CM D74
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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
Short Description
Methemoglobinemia
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to D74: its own notes plus those printed at Chapter 3. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 3 (D50-D89) Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism applies to 324 codes
  • autoimmune disease (systemic) NOS (M35.9)
  • certain conditions originating in the perinatal period (P00-P96)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • human immunodeficiency virus [HIV] disease (B20)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name D74, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming D74: they are not reported together with it, unless the two conditions are unrelated.

  • D58.2 Other hemoglobinopathies
    methemoglobinemia (D74.-)

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About D74Overview

What is the ICD-10 code for methemoglobinemia?

D74 is the ICD-10-CM category for methemoglobinemia, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.