ICD-10-CM R64 is the diagnosis code for Cachexia. This code falls under the section "General symptoms and signs" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as R64. They are mutually exclusive:
Understanding where R64 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R64 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R64 is the ICD-10-CM diagnosis code for "Cachexia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
R64 is located in Section R50-R69 — "General symptoms and signs" within Chapter 18 of the ICD-10-CM Tabular List.
Use R64 when the patients documented diagnosis matches "Cachexia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Cachexia is R64.
Yes, R64 can be used as a primary diagnosis code since it is billable and specific.
R64 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R64 include: abnormal weight loss (R63.4); cachexia due to underlying condition (E88.A); nutritional marasmus (E41).
Yes, R64 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.