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ICD-10-PCS 2027 procedure code

0G9M4ZZDrainage of Left Superior Parathyroid Gland, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Drainage of L Sup Parathyroid, Perc Endo Approach

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 0G9M4ZZ

0G9M4ZZ is the ICD-10-PCS code for a drainage procedure on the left superior parathyroid gland using a percutaneous endoscopic approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to aspiration of thyroid field, the ICD-9-CM procedure title it maps to (06.01).

For a different body part, codes include 0G904ZZ (pituitary gland), 0G914ZZ (pineal body), 0G924ZZ (left adrenal gland), 0G934ZZ (right adrenal gland), 0G944ZZ (bilateral adrenal glands), 0G964ZZ (left carotid body) and 15 more.

The same procedure with a different approach is coded 0G9M0ZZ (open) and 0G9M3ZZ (percutaneous).

With a different device, use 0G9M40Z (drainage device).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
GEndocrine System
3. Operation
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

4. Body Part
MSuperior Parathyroid Gland, Left
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

Different qualifier

ICD-9-CM equivalent

Converter →
  • 06.01Aspiration of thyroid fieldapproximate

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 0G9M4ZZ

Is 0G9M4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0G9M4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0G9M4ZZ?

The CMS GEMs map 0G9M4ZZ to ICD-9-CM 06.01 (Aspiration of thyroid field).