Non-Billable / Non-Specific Code
ICD-10-CM R77 is the diagnosis code for Other abnormalities of plasma proteins. This code falls under the section "Abnormal findings on examination of blood, without diagnosis" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. 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 R77. They are mutually exclusive:
Understanding where R77 sits in the ICD-10-CM classification helps ensure proper coding:
No, R77 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
R77 is the ICD-10-CM diagnosis code for "Other abnormalities of plasma proteins". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
R77 is located in Section R70-R79 — "Abnormal findings on examination of blood, without diagnosis" within Chapter 18 of the ICD-10-CM Tabular List.
R77 has 5 sub-code(s) that provide more specific detail: R77.0, R77.1, R77.2, R77.8, R77.9.
Use R77 when the patients documented diagnosis matches "Other abnormalities of plasma proteins" 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 Other abnormalities of plasma proteins is R77.
No, R77 is non-billable. Use a more specific sub-code for primary diagnosis billing.
R77 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R77 include: disorders of plasma-protein metabolism (E88.0-).
Yes, R77 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.