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ICD-10-PCS 2027 procedure code

0C7S7ZZDilation of Larynx, Via Natural or Artificial Opening

✓ 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 0C7S7ZZ

0C7S7ZZ is the ICD-10-PCS code for a dilation procedure on the larynx using a via natural or artificial opening approach. In ICD-10-PCS, dilation means expanding an orifice or the lumen of a tubular body part.

In plain terms, this corresponds to other operations on larynx, the ICD-9-CM procedure title it maps to (31.98).

For a different body part, codes include 0C7B7ZZ (right parotid duct), 0C7C7ZZ (left parotid duct) and 0C7M7ZZ (pharynx).

The same procedure with a different approach is coded 0C7S0ZZ (open), 0C7S3ZZ (percutaneous), 0C7S4ZZ (percutaneous endoscopic) and 0C7S8ZZ (via natural or artificial opening endoscopic).

With a different device, use 0C7S7DZ (intraluminal device).

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 166 (Other Respiratory System O.R. Procedures with MCC), DRG 167 (Other Respiratory System O.R. Procedures with CC) and DRG 168 (Other Respiratory System O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures” and “Other Respiratory System O.R. 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
CMouth and Throat
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
SLarynx

Includes: Aryepiglottic fold; Arytenoid cartilage; Corniculate cartilage; Cricoid cartilage; Cricothyroid membrane; Cuneiform cartilage; False vocal cord; Glottis; Rima glottidis; Thyroid cartilage; Ventricular fold

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
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 →
  • 31.98Other operations on larynxapproximate

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 0C7S7ZZ

Is 0C7S7ZZ a valid ICD-10-PCS code for 2027?

Yes. 0C7S7ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0C7S7ZZ an O.R. procedure?

Yes. 0C7S7ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0C7S7ZZ group to?

Depending on the principal diagnosis, 0C7S7ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 166, MS-DRG 167 and MS-DRG 168.

What is the ICD-9 procedure code for 0C7S7ZZ?

The CMS GEMs map 0C7S7ZZ to ICD-9-CM 31.98 (Other operations on larynx).