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ICD-10-PCS 2027 procedure code

09M1XZZReattachment of Left External Ear, 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 09M1XZZ

09M1XZZ is the ICD-10-PCS code for a reattachment procedure on the left external ear using an external approach. In ICD-10-PCS, reattachment means putting back in or on all or a portion of a separated body part to its normal location or other suitable location.

In plain terms, this corresponds to reattachment of amputated ear, the ICD-9-CM procedure title it maps to (18.72).

For a different body part, codes include 09M0XZZ (right external ear) and 09MKXZZ (nasal mucosa and soft tissue).

It is an operating-room procedure in the MS-DRG logic for DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures 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 “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
9Ear, Nose, Sinus
3. Operation
MReattachment

Putting back in or on all or a portion of a separated body part to its normal location or other suitable location

Vascular circulation and nervous pathways may or may not be reestablished

Includes: Reattachment of hand, reattachment of avulsed kidney

4. Body Part
1External Ear, Left
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 →
  • 18.72Reattachment of amputated earapproximate

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 09M1XZZ

Is 09M1XZZ a valid ICD-10-PCS code for 2027?

Yes. 09M1XZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09M1XZZ an O.R. procedure?

Yes. 09M1XZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09M1XZZ group to?

Depending on the principal diagnosis, 09M1XZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 09M1XZZ?

The CMS GEMs map 09M1XZZ to ICD-9-CM 18.72 (Reattachment of amputated ear).