U.S. ICD-10-CM · FY 2027

R71 ICD-10-CM Code: Abnormality of red blood cells

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

R71

Abnormality of red blood cells

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where R71 sits

  1. 1

    Chapter 18

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

  2. 2

    Section

    Abnormal findings on examination of blood, without diagnosis (R70-R79)

  3. 3

    Category R71

    Abnormality of red blood cells

  4. 4

    Code R71

    Abnormality of red blood cells

More specific choices

Codes under R71

R71 is a non-billable category. Choose the child code that best matches the documented diagnosis.

R71.0

Precipitous drop in hematocrit

R71.8

Other abnormality of red blood cells

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for R71.

Code first

No “code first” instruction is listed for R71.

Use additional code

No “use additional code” instruction is listed for R71.

Excludes1

Conditions that should not be reported together with this code.

  • anemias (D50-D64)
  • anemia of premature infant (P61.2)
  • benign (familial) polycythemia (D75.0)
  • congenital anemias (P61.2-P61.4)
  • newborn anemia due to isoimmunization (P55.-)
  • polycythemia neonatorum (P61.1)
  • polycythemia NOS (D75.1)
  • polycythemia vera (D45)
  • secondary polycythemia (D75.1)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for R71.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code R71 mean?

R71 is the FY 2027 U.S. ICD-10-CM code for “Abnormality of red blood cells.”

Is R71 a billable or specific ICD-10-CM code?

No. R71 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is R71 located in ICD-10-CM?

R71 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Abnormal findings on examination of blood, without diagnosis (R70-R79) (R70–R79), under category R71, Abnormality of red blood cells.

What coding notes are listed for R71?

No inclusion terms are listed for R71 in this reference record. No code-first instruction is listed. Excludes1 notes: anemias (D50-D64); anemia of premature infant (P61.2); benign (familial) polycythemia (D75.0); congenital anemias (P61.2-P61.4); newborn anemia due to isoimmunization (P55.-); polycythemia neonatorum (P61.1); polycythemia NOS (D75.1); polycythemia vera (D45); secondary polycythemia (D75.1). No Excludes2 note is listed.

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