R64 – Cachexia

ICD-10-CM 2027 diagnosis code · General symptoms and signs

Billable code

ICD-10-CM code R64
Code
R64 (claims format: R64)
Description
Cachexia
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block
R50-R69 General symptoms and signs

Notes for R64

Excludes1 (not coded here):
  • abnormal weight loss (R63.4)
  • cachexia due to underlying condition (E88.A)
  • nutritional marasmus (E41)

Index terms for R64

Entries in the ICD-10-CM alphabetic index that lead to this code:

Frequently asked questions

What is ICD-10 code R64?

R64 is the ICD-10-CM code for cachexia, in the block R50-R69 (General symptoms and signs).

Is R64 a billable code?

Yes. R64 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.