Get started free

R64

Billable

Cachexia

R64 is the ICD-10-CM code for Cachexia. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
R00-R99
Edition
FY2026

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

What this means — in plain language

MedlinePlus · NIH

What is malnutrition? Malnutrition means that your body isn't getting enough calories or the right balance of nutrients to stay healthy. This can happen if you don't get enough protein , carbohydrates , and fats , eat too much unhealthy food, or don't get the vitamins and minerals your body needs. Malnutrition can affect people of all ages, but children, older adults, and people with chronic (long-term) health…

Read more about Malnutrition at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

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

Frequently asked questions

What is ICD-10 code R64?
R64 is the ICD-10-CM code for "Cachexia". It falls under R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Is R64 a billable code?
Yes — R64 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from R64?
Excludes1 (not coded here): abnormal weight loss (R63.4); cachexia due to underlying condition (E88.A); nutritional marasmus (E41).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →