R64
Billable codeCachexia
The ICD-10 code for cachexia is R64.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- R50Fever of other and unknown originnon-billable header
- R51Headachenon-billable header
- R52Pain, unspecified
- R53Malaise and fatiguenon-billable header
- R54Age-related physical debility
- R55Syncope and collapse
- R56Convulsions, not elsewhere classifiednon-billable header
- R57Shock, not elsewhere classifiednon-billable header
- R58Hemorrhage, not elsewhere classified
- R59Enlarged lymph nodesnon-billable header
- R60Edema, not elsewhere classifiednon-billable header
- R61Generalized hyperhidrosis
- R62Lack of expected normal physiological development in childhood and adultsnon-billable header
- R63Symptoms and signs concerning food and fluid intakenon-billable header
- R65Symptoms and signs specifically associated with systemic inflammation and infectionnon-billable header
- R68Other general symptoms and signsnon-billable header
- R69Illness, unspecified
- R64Cachexia
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7994
Associated MS-DRGs
R64 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.