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R77.9

R77.9: Abnormality of plasma protein, unspecified

Billable / specific codeICD-10-CM

R77.9 is a billable, specific ICD-10-CM code for abnormality of plasma protein, unspecified. It is valid for submission on a claim.

Check R77.9 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above R77.9

A category’s note binds every code beneath it.

Written on R77: Other abnormalities of plasma proteins

  • disorders of plasma-protein metabolism (E88.0-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

R77.9 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy

Alphabetic index entries that lead here

  • Proteinemia
  • Abnormal, abnormality, abnormalities›plasma›protein

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under R77

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.