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ICD-10-PCS 2027 procedure code

091E070Bypass Left Inner Ear to Endolymphatic with Autologous Tissue Substitute, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass L Inner Ear to Endolymphatic w Autol Sub, Open

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 091E070

091E070 is the ICD-10-PCS code for a bypass procedure on the left inner ear using an open approach with autologous tissue substitute (qualifier: endolymphatic). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

In plain terms, this corresponds to Endolymphatic shunt, the ICD-9-CM procedure title it maps to (20.71).

For a different body part, codes include 091D070 (right inner ear).

With a different device, use 091E0J0 (synthetic substitute), 091E0K0 (nonautologous tissue substitute) and 091E0Z0 (no 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) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical category “Other Ear, Nose, Mouth and Throat 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
9Ear, Nose, Sinus
3. Operation
1Bypass

Altering the route of passage of the contents of a tubular body part

Rerouting contents of a body part to a downstream area of the normal route, to a similar route and body part, or to an abnormal route and dissimilar body part. Includes one or more anastomoses, with or without the use of a device

Includes: Coronary artery bypass, colostomy formation

4. Body Part
EInner Ear, Left

Includes: Bony labyrinth; Bony vestibule; Cochlea; Round window; Semicircular canal

5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
7Autologous Tissue Substitute

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

7. Qualifier
0Endolymphatic

Other versions of this procedure

Different body part

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 →
  • 20.71Endolymphatic shuntapproximate

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 091E070

Is 091E070 a valid ICD-10-PCS code for 2027?

Yes. 091E070 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 091E070 an O.R. procedure?

Yes. 091E070 is an O.R. procedure in MS-DRG v44.0.

What DRG does 091E070 group to?

Depending on the principal diagnosis, 091E070 can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 091E070?

The CMS GEMs map 091E070 to ICD-9-CM 20.71 (Endolymphatic shunt).