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ICD-10-PCS 2027 procedure code

097N8ZZDilation of Nasopharynx, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027O.R. procedure

Short description: Dilation of Nasopharynx, Endo

Code last changed in FY2024 (effective October 1, 2023). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 097N8ZZ

097N8ZZ is the ICD-10-PCS code for a dilation procedure on the nasopharynx using a via natural or artificial opening endoscopic approach. In ICD-10-PCS, dilation means expanding an orifice or the lumen of a tubular body part.

For a different body part, codes include 097F8ZZ (right eustachian tube) and 097G8ZZ (left eustachian tube).

The same procedure with a different approach is coded 097N0ZZ (open) and 097N7ZZ (via natural or artificial opening).

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 was added in FY2024, effective October 1, 2023.

What each character means

1. Section
0Medical and Surgical
2. Body System
9Ear, Nose, Sinus
3. Operation
7Dilation

Expanding an orifice or the lumen of a tubular body part

The orifice can be a natural orifice or an artificially created orifice. Accomplished by stretching a tubular body part using intraluminal pressure or by cutting part of the orifice or wall of the tubular body part

Includes: Percutaneous transluminal angioplasty, internal urethrotomy

4. Body Part
NNasopharynx

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

5. Approach
8Via Natural or Artificial Opening Endoscopic

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

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.

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
  • FY2024 (effective 10/1/2023): Added
  • No changes since FY2024.

Common questions about 097N8ZZ

Is 097N8ZZ a valid ICD-10-PCS code for 2027?

Yes. 097N8ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 097N8ZZ an O.R. procedure?

Yes. 097N8ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 097N8ZZ group to?

Depending on the principal diagnosis, 097N8ZZ can group to MS-DRG 040, MS-DRG 041, MS-DRG 042, MS-DRG 143, MS-DRG 144 and MS-DRG 145.