86162 Complement total (ch50)
Also known as: CH50, total complement, total hemolytic complement
Complement total (CH50) test measures the total hemolytic complement activity of the classical complement pathway using antibody-coated sheep red blood cells.
In Plain Language
Total immune complement test; Complement system check
Clinical Context
Screens for complement pathway defects and complement consumption. Normal CH50 with low C3/C4 suggests C1q deficiency. Used in lupus and vasculitis evaluation.
RVU Information
CPT 86162 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 86162?
CPT 86162 (Complement total (ch50)) is a Pathology & Lab code. Complement total (CH50) test measures the total hemolytic complement activity of the classical complement pathway using antibody-coated sheep red blood cells.
Who uses CPT code 86162?
CPT 86162 is used by Immunology, Clinical Pathology, Rheumatology. Screens for complement pathway defects and complement consumption. Normal CH50 with low C3/C4 suggests C1q deficiency. Used in lupus and vasculitis evaluation.
When is CPT 86162 used?
Screens for complement pathway defects and complement consumption. Normal CH50 with low C3/C4 suggests C1q deficiency. Used in lupus and vasculitis evaluation.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.