Skip to content
Dx

ICD-10-PCS 2027 procedure code

0CUM77ZSupplement Pharynx with Autologous Tissue Substitute, Via Natural or Artificial Opening

✓ Valid for 2027O.R. procedure

Short description: Supplement Pharynx with Autol Sub, Via Opening

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 0CUM77Z

0CUM77Z is the ICD-10-PCS code for a supplement procedure on the pharynx using a via natural or artificial opening approach with autologous tissue substitute. In ICD-10-PCS, supplement means putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part.

In plain terms, this corresponds to plastic operation on pharynx, the ICD-9-CM procedure title it maps to (29.4).

For a different body part, codes include 0CUR77Z (epiglottis), 0CUS77Z (larynx), 0CUT77Z (right vocal cord) and 0CUV77Z (left vocal cord).

The same procedure with a different approach is coded 0CUM07Z (open) and 0CUM87Z (via natural or artificial opening endoscopic).

With a different device, use 0CUM7JZ (synthetic substitute) and 0CUM7KZ (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 040 (Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC), DRG 041 (Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator), DRG 042 (Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC), 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) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical categories “Peripheral, Cranial Nerve and Other Nervous System Procedures”, “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “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
CMouth and Throat
3. Operation
USupplement

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

The biological material is non-living, or is living and from the same individual. The body part may have been previously replaced, and the Supplement procedure is performed to physically reinforce and/or augment the function of the replaced body part

Includes: Herniorrhaphy using mesh, mitral valve ring annuloplasty, put a new acetabular liner in a previous hip replacement

4. Body Part
MPharynx

Includes: Base of Tongue; Hypopharynx; Laryngopharynx; Lingual tonsil; Oropharynx; Piriform recess (sinus); Tongue, base of

5. Approach
7Via Natural or Artificial Opening

Entry of instrumentation through a natural or artificial external opening to reach the site of the procedure

6. Device
7Autologous Tissue Substitute

Includes: Autograft; Cultured epidermal cell autograft; Epicel(R) cultured epidermal autograft

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 →
  • 29.4Plastic operation on pharynxapproximate

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 0CUM77Z

Is 0CUM77Z a valid ICD-10-PCS code for 2027?

Yes. 0CUM77Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CUM77Z an O.R. procedure?

Yes. 0CUM77Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CUM77Z group to?

Depending on the principal diagnosis, 0CUM77Z can group to MS-DRG 040, MS-DRG 041, MS-DRG 042, MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 0CUM77Z?

The CMS GEMs map 0CUM77Z to ICD-9-CM 29.4 (Plastic operation on pharynx).