ICD10BillableValid for clinical use

ICD-10 Code R77.8: Other specified abnormalities of plasma proteins

R77.8 is a billable ICD-10 diagnosis code used to classify Other specified abnormalities of plasma proteins in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

When is it used?

  • May be used when a clinician documents other specified abnormalities of plasma proteins in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
block
R70-R79Abnormal findings on examination of blood, without diagnosis
category
R77Other abnormalities of plasma proteins
currentR77

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General Physician

Coverage-related procedures and services

CPT 78434high
ABSOLUTE QUANTITATION OF MYOCARDIAL BLOOD FLOW (AQMBF), POSITRON EMISSION TOMOGRAPHY (PET), REST AND PHARMACOLOGIC STRESS (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 0742Thigh
ABSOLUTE QUANTITATION OF MYOCARDIAL BLOOD FLOW (AQMBF), SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT), WITH EXERCISE OR PHARMACOLOGIC STRESS, AND AT REST, WHEN PERFORMED (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 75563high
CARDIAC MAGNETIC RESONANCE IMAGING FOR MORPHOLOGY AND FUNCTION WITHOUT CONTRAST MATERIAL(S), FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SEQUENCES; WITH STRESS IMAGING
Source: CMS coverage guidance
CPT 75559high
CARDIAC MAGNETIC RESONANCE IMAGING FOR MORPHOLOGY AND FUNCTION WITHOUT CONTRAST MATERIAL; WITH STRESS IMAGING
Source: CMS coverage guidance
CPT 93018high
CARDIOVASCULAR STRESS TEST USING MAXIMAL OR SUBMAXIMAL TREADMILL OR BICYCLE EXERCISE, CONTINUOUS ELECTROCARDIOGRAPHIC MONITORING, AND/OR PHARMACOLOGICAL STRESS; INTERPRETATION AND REPORT ONLY
Source: CMS coverage guidance
CPT 93016high
CARDIOVASCULAR STRESS TEST USING MAXIMAL OR SUBMAXIMAL TREADMILL OR BICYCLE EXERCISE, CONTINUOUS ELECTROCARDIOGRAPHIC MONITORING, AND/OR PHARMACOLOGICAL STRESS; SUPERVISION ONLY, WITHOUT INTERPRETATION AND REPORT
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
R77.8

Common synonyms

Other specified abnormalities of plasma proteins

Frequently asked questions

Code details

CodeR77.8
SystemICD10
Display nameOther specified abnormalities of plasma proteins
ChapterSymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
BlockAbnormal findings on examination of blood, without diagnosis

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Abnormal, abnormality, abnormalities

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code R77.8 for Other specified abnormalities of plasma proteins | HealthAssure