R77
⚠ Non-billable
Other abnormalities of plasma proteins
ICD-10-CM · FY2026 · Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Code
R77
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code R77?
ICD-10-CM code R77 represents Other abnormalities of plasma proteins. It is a non-billable header code requiring a more specific subcategory in the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter, effective October 1, 2025 – September 30, 2026.
Is R77 billable?
No. R77 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is R77 in?
R77 belongs to the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter (R00–R99) of ICD-10-CM.
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