ICD-10-PCS 2027 procedure code
0CJY0ZZInspection of Mouth and Throat, Open Approach
Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 0CJY0ZZ
0CJY0ZZ is the ICD-10-PCS code for a inspection procedure on the mouth and throat using an open approach. In ICD-10-PCS, inspection means visually and/or manually exploring a body part.
In plain terms, this corresponds to other diagnostic procedures on teeth, gums, and alveoli, other diagnostic procedures on tongue, other diagnostic procedures on tonsils and adenoids and 1 more, the ICD-9-CM procedure titles it maps to (24.19, 25.09, 28.19 and 1 more).
For a different body part, codes include 0CJA0ZZ (salivary gland) and 0CJS0ZZ (larynx).
The same procedure with a different approach is coded 0CJY3ZZ (percutaneous), 0CJY4ZZ (percutaneous endoscopic), 0CJY7ZZ (via natural or artificial opening), 0CJY8ZZ (via natural or artificial opening endoscopic) and 0CJYXZZ (external).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
It has been valid since ICD-10-PCS took effect on October 1, 2015.
What each character means
- 1. Section
- 0Medical and Surgical
- 2. Body System
- CMouth and Throat
- 3. Operation
- JInspection
Visually and/or manually exploring a body part
Visual exploration may be performed with or without optical instrumentation. Manual exploration may be performed directly or through intervening body layers
Includes: Diagnostic arthroscopy, exploratory laparotomy
- 4. Body Part
- YMouth and Throat
- 5. Approach
- 0Open
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
ICD-9-CM equivalent
Converter →- 24.19Other diagnostic procedures on teeth, gums, and alveoliapproximate
- 25.09Other diagnostic procedures on tongueapproximate
- 28.19Other diagnostic procedures on tonsils and adenoidsapproximate
- 29.19Other diagnostic procedures on pharynxapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 0CJY0ZZ
Is 0CJY0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 0CJY0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 0CJY0ZZ?
- The CMS GEMs map 0CJY0ZZ to ICD-9-CM 24.19 (Other diagnostic procedures on teeth, gums, and alveoli), 25.09 (Other diagnostic procedures on tongue), 28.19 (Other diagnostic procedures on tonsils and adenoids) and 1 more.