ICD-10-PCS 2027 procedure code
0QNF0ZZRelease Left Patella, 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 0QNF0ZZ
0QNF0ZZ is the ICD-10-PCS code for a release procedure on the left patella using an open approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.
In plain terms, this corresponds to other repair or plastic operations on bone, patella, the ICD-9-CM procedure title it maps to (78.46).
For a different body part, codes include 0QN00ZZ (lumbar vertebra), 0QN10ZZ (sacrum), 0QN20ZZ (right pelvic bone), 0QN30ZZ (left pelvic bone), 0QN40ZZ (right acetabulum), 0QN50ZZ (left acetabulum) and 18 more.
The same procedure with a different approach is coded 0QNF3ZZ (percutaneous) and 0QNF4ZZ (percutaneous endoscopic).
It is an operating-room procedure in the MS-DRG logic for DRG 400 (Knee Procedures with Principal Diagnosis of Infection), DRG 488 (Knee Procedures without Principal Diagnosis of Infection with CC/MCC), DRG 489 (Knee Procedures without Principal Diagnosis of Infection without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Knee Procedures with Principal Diagnosis of Infection”, “Knee Procedures without Principal Diagnosis of Infection”, “Other O.R. Procedures for Injuries” and 1 more.
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
- QLower Bones
- 3. Operation
- NRelease
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
- 4. Body Part
- FPatella, Left
- 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
Different body part
Different approach
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Knee Procedures with Principal Diagnosis of Infection
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Knee Procedures without Principal Diagnosis of Infection
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 78.46Other repair or plastic operations on bone, patellaapproximate
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 0QNF0ZZ
Is 0QNF0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 0QNF0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0QNF0ZZ an O.R. procedure?
- Yes. 0QNF0ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 0QNF0ZZ group to?
- Depending on the principal diagnosis, 0QNF0ZZ can group to MS-DRG 400, MS-DRG 488, MS-DRG 489, MS-DRG 907, MS-DRG 908 and MS-DRG 909.
What is the ICD-9 procedure code for 0QNF0ZZ?
- The CMS GEMs map 0QNF0ZZ to ICD-9-CM 78.46 (Other repair or plastic operations on bone, patella).