03NN0ZZBillable procedure code
Release Left External Carotid Artery, Open Approach
Medical and Surgical·Upper Arteries·Table 03N·FY 2027
ICD-10-PCS classifies this procedure as 03NN0ZZ: Release Left External Carotid Artery, Open Approach. Table 03N, part of Section 0 (Medical and Surgical) contains it. The procedure targets the Upper Arteries body system. The approach used is Open.
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What the code means
Release: root operation
Freeing a body part from an abnormal physical constraint by cutting or by the use of force
Some of the restraining tissue may be taken out but none of the body part is taken out
Includes: Adhesiolysis, carpal tunnel release
Open: approach
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure