CPT® 0655U, Under Proprietary Laboratory Analyses

The Current Procedural Terminology (CPT®) code 0655U as maintained by American Medical Association, is a medical procedural code under the range - Proprietary Laboratory Analyses.

Get the full picture on this code.

Start a FREE 2-WEEK TRIAL of Codify by AAPC.

Tabs
Summary

This is a Proprietary Laboratory Analyses (PLA) code, meaning that the code applies to only one unique lab test made by a specific manufacturer or performed by a specific lab. Report 0655U only for Complex V Hydrolysis Enzyme Assay from Children's Hospital Colorado Laboratory. This test is used for primary mitochondrial disease, which is a disorder that affects how cells produce energy. It analyzes complex V, which is a mitochondrial enzyme complex, using a spectrophotometric kinetic assay on cultured skin fibroblasts. The assay evaluates complex V activity by measuring ATP hydrolysis, which means the breakdown of ATP, and the result is reported as a diagnostic quantitative result, meaning it provides a measured value.

For clinical responsibility, terminology, tips and additional info
start codify free trial.

View any code changes for 2026 as well as historical information on code creation and revision.
Tabs
Combat the #1 denial reason - mismatched CPT-ICD-9 codes - with top Medicare carrier and private payer accepted diagnoses for the chosen CPT® code.
View the CPT® code's corresponding procedural code and DRG. In a click, check the DRG's IPPS allowable, length of stay, and more. To plug inpatient facility revenue drains, subscribe to DRG Coder today.
Crosswalk to an anesthesia code and its base units, and calculate payments in a snap! Subscribe to Anesthesia Coder today.
View matching HCPCS Level II codes and their definitions.

Forum

Have a question about CPT Code 0655U ? Start a discussion here