R77.9 Abnormality of plasma protein, unspecified

Billable ICD-10-CM code, FY2026.

Applies from R77 Other abnormalities of plasma proteins

Excludes1 (never code together)

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

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 790.99 Other nonspecific findings on examination of blood (approximate)

Diagnosis Index entries for R77.9

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

Nearby codes

• R77 Other abnormalities of plasma proteins
• R77.0 Abnormality of albumin
• R77.1 Abnormality of globulin
• R77.2 Abnormality of alphafetoprotein
• R77.8 Other specified abnormalities of plasma proteins
• R77.9 Abnormality of plasma protein, unspecified (this code)