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ICD-10-PCS 2027 procedure code

0DNQXZZRelease Anus, External Approach

✓ Valid for 2027O.R. procedure

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 0DNQXZZ

0DNQXZZ is the ICD-10-PCS code for a release procedure on the anus using an external 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 incision of anal septum, the ICD-9-CM procedure title it maps to (49.91).

The same procedure with a different approach is coded 0DNQ0ZZ (open), 0DNQ3ZZ (percutaneous), 0DNQ4ZZ (percutaneous endoscopic), 0DNQ7ZZ (via natural or artificial opening) and 0DNQ8ZZ (via natural or artificial opening endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 347 (Anal and Stomal Procedures with MCC), DRG 348 (Anal and Stomal Procedures with CC) and DRG 349 (Anal and Stomal Procedures without CC/MCC), under the surgical category “Anal and Stomal Procedures”.

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
DGastrointestinal System
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
QAnus

Includes: Anal orifice

5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 49.91Incision of anal septumapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0DNQXZZ

Is 0DNQXZZ a valid ICD-10-PCS code for 2027?

Yes. 0DNQXZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0DNQXZZ an O.R. procedure?

Yes. 0DNQXZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0DNQXZZ group to?

Depending on the principal diagnosis, 0DNQXZZ can group to MS-DRG 347, MS-DRG 348 and MS-DRG 349.

What is the ICD-9 procedure code for 0DNQXZZ?

The CMS GEMs map 0DNQXZZ to ICD-9-CM 49.91 (Incision of anal septum).