ICD-10-PCS 2027 procedure code
F13ZLZZAuditory Evoked Potentials Assessment
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 F13ZLZZ
F13ZLZZ is the ICD-10-PCS code for a hearing assessment procedure on the none using an auditory evoked potentials approach with none (qualifier: none). In ICD-10-PCS, hearing assessment means measurement of hearing and related functions.
In plain terms, this corresponds to Electrocochleography, the ICD-9-CM procedure title it maps to (20.31).
The same procedure with a different approach is coded F13Z0ZZ (hearing screening), F13Z1ZZ (pure tone audiometry, air), F13Z2ZZ (pure tone audiometry, air and bone), F13Z3ZZ (bekesy audiometry), F13Z4ZZ (conditioned play audiometry), F13Z5ZZ (select picture audiometry) and 16 more.
With a different device, use F13ZL7Z (electrophysiologic).
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
- FPhysical Rehabilitation and Diagnostic Audiology
- 2. Section Qualifier
- 1Diagnostic Audiology
- 3. Type
- 3Hearing Assessment
Measurement of hearing and related functions
- 4. Body System / Region
- ZNone
- 5. Type Qualifier
- LAuditory Evoked Potentials
Measures electric responses produced by the VIIIth cranial nerve and brainstem following auditory stimulation
- 6. Equipment
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different type qualifier
- F13Z0ZZHearing Screening
- F13Z1ZZPure Tone Audiometry, Air
- F13Z2ZZPure Tone Audiometry, Air and Bone
- F13Z3ZZBekesy Audiometry
- F13Z4ZZConditioned Play Audiometry
- F13Z5ZZSelect Picture Audiometry
- F13Z6ZZVisual Reinforcement Audiometry
- F13Z7ZZAlternate Binaural or Monaural Loudness Balance
- F13Z8ZZTone Decay
- F13Z9ZZShort Increment Sensitivity Index
- F13ZBZZStenger
- F13ZCZZPure Tone Stenger
Different equipment
ICD-9-CM equivalent
Converter →- 20.31Electrocochleographyapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.