D64.9 Anemia, unspecified

The ICD-10-CM code for Anemia, unspecified is D64.9 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Section

D60-D64: Aplastic and other anemias and other bone marrow failure syndromes (D60-D64)

Category D64

10 codes (8 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to D64.9:

• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
• Oligocythemia
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › idiopathic
• Deficiency, deficient › hemoglobin
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › progressive
• Hemoglobin › low NOS
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › atypical (primary)
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › normocytic (infectional)

U.S. Hospital Utilization

• An estimated 2,473,346 U.S. inpatient stays in 2023 included D64.9 among the documented diagnoses.
• 20,680 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Prevalence & Statistics

• During August 2021-August 2023, the overall prevalence of anemia among people in the United States age 2 years and older was 9.3%, with higher prevalence in females (13.0%) than males (5.5%). (CDC National Center for Health Statistics (NCHS) Data Brief No. 519, 2023)

Official Coding Guidelines

Chapter 3 TOC entry

3. Chapter 3: Disease of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) ............................................................................................. 39

Reserved for future guideline expansion

Reserved for future guideline expansion ...................................................................................... 39

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)
• CDC National Center for Health Statistics (NCHS) Data Brief No. 519 (2023)

Cite This Page

Reference D64.9 with the canonical source and edition:

D64.9 — Anemia, unspecified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/D64.9

Canonical URL: https://icd10codingpro.com/codes/D64.9