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D64 vs R71

D64 (Other anemias) compared with R71 (Abnormality of red blood cells), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Can these codes be reported together?

No — do not report together. R71 carries an Excludes1 note covering D64: “anemias (D50-D64)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

D64Other anemiasR71Abnormality of red blood cells
Billing statusNon-billable header

Report instead: D64.0, D64.1, D64.2, D64.3, D64.4

Non-billable header

Report instead: R71.0, R71.8

ClassificationD50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89)R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99)
DefinitionOther anemias is a non-billable ICD-10-CM category code (D64).Abnormality of red blood cells is a non-billable ICD-10-CM category code (R71).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources