20.42 - Radical Mastoidectomy
The ICD 9 Code for Radical mastoidectomy is listed as 20.42.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS and chapter information where available.
| ICD 9 CM Volume 3 (PCS) Field | Value |
|---|---|
| Procedure Code: | 20.42 |
| Description: | Radical mastoidectomy |
| Short Description: | Radical mastoidectomy |
| Chapter: | Operations on the ear |
| Subsection 1: | Other operations on middle and inner ear |
| ICD-10-PCS General Equivalence Mappings (GEMS): | |
| ICD 10 PCS Code: | 09TB0ZZ - Resection of Right Mastoid Sinus, Open Approach (approximate) |
| ICD 10 PCS Code: | 09TB4ZZ - Resection of Right Mastoid Sinus, Percutaneous Endoscopic Approach (approximate) |
| ICD 10 PCS Code: | 09TC0ZZ - Resection of Left Mastoid Sinus, Open Approach (approximate) |
| ICD 10 PCS Code: | 09TC4ZZ - Resection of Left Mastoid Sinus, Percutaneous Endoscopic Approach (approximate) |
| ICD-9-CM Volume 3 (PCS) Siblings (same level / similar specificity) of 20.42: | |
| 20.41 - Simple mastoidectomy | |
| 20.49 - Other mastoidectomy | |