09NB0ZZBillable procedure code
Release Right Mastoid Sinus, Open Approach
Medical and Surgical·Ear, Nose, Sinus·Table 09N·FY 2027
In ICD-10-PCS, code 09NB0ZZ describes Release Right Mastoid Sinus, Open Approach. This procedure is listed in table 09N, part of Section 0 (Medical and Surgical). Its root operation is Release. 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