2026 ICD-10-CM Diagnosis Code D63.8Anemia in other chronic diseases classified elsewhere

ICD-10-CM Codes›D50–D89›D60-D64›D63

ICD-10-CM D63.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D63.8 is a billable ICD-10-CM diagnosis code for anemia in other chronic diseases classified elsewhere. 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. The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Aplastic anemia.

Code Identity

ICD-10-CM Code
D63.8
Billable Status
Yes — Valid for Submission
Code Describes
Anemia in other chronic diseases classified elsewhere
Short Description
Anemia in other chronic diseases classified elsewhere
Same as the full description in the CMS dataset.
Parent Code
D63
Anemia in chronic diseases classified elsewhere

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD60-D64Aplastic and other anemias and other bone marrow failure syndromes
CategoryD63Anemia in chronic diseases classified elsewhere
This CodeD63.8Anemia in other chronic diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for D63.8.

Manifestation diagnoses
Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anemia associated with AIDS
  • Anemia due to chronic infectious disease
  • Anemia due to diabetes mellitus
  • Anemia due to metabolic disorder
  • Anemia of adrenal dysfunction
  • Anemia of chronic disease
  • Anemia of endocrine disorder
  • Anemia of gonadal dysfunction
  • Anemia of parathyroid dysfunction
  • Anemia of pituitary deficiency
  • Anemia of thyroid dysfunction
  • Mycoplasmal anemia

Tabular List NotesGuidance

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

Code First

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)
      • due to (in) (with)
        • chronic disease classified elsewhere NEC
    • Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
      • intertropical

Clinical ClassificationClinical

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

CCSR BLD003
Aplastic anemia
Default principal diagnosis: inpatient No · outpatient No

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 D63.8 to ICD-9-CMHistory

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

ICD-9-CM
285.29 Anemia-other chronic dis
Approximate The match is approximate rather than exact.

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 D63.8Overview

Is D63.8 (Anemia in chronic diseases classified elsewhere) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report anemia in other chronic diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D63.8 group to?

On inpatient claims, anemia in other chronic diseases classified elsewhere maps to MS-DRG 811, 812, with relative weights from 0.9182 to 1.4043 depending on complications. Higher weights mean higher Medicare reimbursement.

Can D63.8 be a principal diagnosis?

No. This is a manifestation code: anemia in other chronic diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.

What is the ICD-9 equivalent of D63.8?

Under the General Equivalence Mappings, anemia in other chronic diseases classified elsewhere converts to ICD-9-CM 285.29 (anemia-other chronic dis). The mapping is approximate, so confirm the match fits the documentation.

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.