U.S. ICD-10-CM · FY 2027

R64 ICD-10-CM Code: Cachexia

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

Code definition

Official description

R64

Cachexia

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

Classification

Where R64 sits

  1. 1

    Chapter 18

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

  2. 2

    Section

    General symptoms and signs (R50-R69)

  3. 3

    Category R64

    Cachexia

  4. 4

    Code R64

    Cachexia

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for R64.

Code first

No “code first” instruction is listed for R64.

Use additional code

No “use additional code” instruction is listed for R64.

Excludes1

Conditions that should not be reported together with this code.

  • abnormal weight loss (R63.4)
  • cachexia due to underlying condition (E88.A)
  • nutritional marasmus (E41)

Excludes2

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

No Excludes2 note is listed for R64.

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 R64 mean?

R64 is the FY 2027 U.S. ICD-10-CM code for “Cachexia.”

Is R64 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, R64 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is R64 located in ICD-10-CM?

R64 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within General symptoms and signs (R50-R69) (R50–R69), under category R64, Cachexia.

What coding notes are listed for R64?

No inclusion terms are listed for R64 in this reference record. No code-first instruction is listed. Excludes1 notes: abnormal weight loss (R63.4); cachexia due to underlying condition (E88.A); nutritional marasmus (E41). No Excludes2 note is listed.

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