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ICD-10-PCS 2027 procedure code

09RN77ZReplacement of Nasopharynx with Autologous Tissue Substitute, Via Natural or Artificial Opening

✓ Valid for 2027O.R. procedure

Short description: Replacement of Nasopharynx 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 09RN77Z

09RN77Z is the ICD-10-PCS code for a replacement procedure on the nasopharynx using a via natural or artificial opening approach with autologous tissue substitute. In ICD-10-PCS, replacement means putting in or on biological or synthetic material that physically takes the place and/or function of all or 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 09R777Z (right tympanic membrane), 09R877Z (left tympanic membrane) and 09RL77Z (nasal turbinate).

The same procedure with a different approach is coded 09RN07Z (open) and 09RN87Z (via natural or artificial opening endoscopic).

With a different device, use 09RN7JZ (synthetic substitute) and 09RN7KZ (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
9Ear, Nose, Sinus
3. Operation
RReplacement

Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part

The body part may have been taken out or replaced, or may be taken out, physically eradicated, or rendered nonfunctional during the Replacement procedure. A Removal procedure is coded for taking out the device used in a previous replacement procedure

Includes: Total hip replacement, bone graft, free skin graft

4. Body Part
NNasopharynx

Includes: Choana; Fossa of Rosenmuller; Pharyngeal recess; Rhinopharynx

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 09RN77Z

Is 09RN77Z a valid ICD-10-PCS code for 2027?

Yes. 09RN77Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09RN77Z an O.R. procedure?

Yes. 09RN77Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 09RN77Z group to?

Depending on the principal diagnosis, 09RN77Z 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 09RN77Z?

The CMS GEMs map 09RN77Z to ICD-9-CM 29.4 (Plastic operation on pharynx).