2026 ICD-10-CM Diagnosis Code D50.0Iron deficiency anemia secondary to blood loss (chronic)

ICD-10-CM Codes›D50–D89›D50-D53›D50

ICD-10-CM D50.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D50.0 is a billable ICD-10-CM diagnosis code for iron deficiency anemia secondary to blood loss (chronic). It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 811 through 812. Coders also document this condition as anemia due to blood loss. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nutritional anemia.

Code Identity

ICD-10-CM Code
D50.0
Billable Status
Yes — Valid for Submission
Code Describes
Iron deficiency anemia secondary to blood loss (chronic)
Short Description
Iron deficiency anemia secondary to blood loss (chronic)
Same as the full description in the CMS dataset.
Parent Code
D50
Iron deficiency anemia

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD50-D53Nutritional anemias
CategoryD50Iron deficiency anemia
This CodeD50.0Iron deficiency anemia secondary to blood loss (chronic)

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anemia due to blood loss
  • Anemia due to chronic blood loss
  • Iron deficiency anemia due to blood loss
  • Normocytic anemia
  • Normocytic anemia due to chronic blood loss

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Posthemorrhagic anemia (chronic)

Type 1 Excludes

  • acute posthemorrhagic anemia D62
  • congenital anemia from fetal blood loss P61.3

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • chronic
        • blood loss
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • deficiency
        • iron
          • secondary to blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • due to (in) (with)
        • blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • due to (in) (with)
        • hemorrhage (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • due to (in) (with)
        • loss of blood (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • factitious (self-induced blood letting)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • hemorrhagic (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • hypochromic (idiopathic) (microcytic) (normoblastic)
        • due to blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • iron deficiency
        • secondary to blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • microcytic (hypochromic)
        • due to blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • normocytic (infectional)
        • due to blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • posthemorrhagic (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • postoperative (postprocedural)
        • due to (acute) blood loss
          • chronic blood loss
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • secondary to
        • blood loss (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • secondary to
        • hemorrhage (chronic)
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • sideropenic (refractory)
        • due to blood loss (chronic)
    • Hemorrhage, hemorrhagic(concealed)
      • anemia (chronic)
    • Normocytic anemia(infectional) due to blood loss (chronic)
    • Posthemorrhagic anemia(chronic)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR BLD001
Nutritional anemia
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Normocytic Anemia

    anemia in which the red blood cell volume is normal.

Patient EducationClinical

Anemia

If you have anemia, your blood does not carry enough oxygen to the rest of your body. The most common cause of anemia is not having enough iron. Your body needs iron to make hemoglobin. Hemoglobin is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body.

Read the full article at MedlinePlus

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

Convert D50.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
280.0 Chr blood loss anemia
Exact Match The mapping is direct, with no qualifiers.

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 D50.0Overview

Is D50.0 (Iron deficiency anemia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report iron deficiency anemia secondary to blood loss (chronic) on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D50.0 group to?

When iron deficiency anemia secondary to blood loss (chronic) is the principal diagnosis on an inpatient stay, it groups to MS-DRG 811, 812, with relative weights from 0.9182 to 1.4043 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D50.0?

Under the General Equivalence Mappings, iron deficiency anemia secondary to blood loss (chronic) converts to ICD-9-CM 280.0 (chr blood loss anemia). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.