Skip to content
Dx

ICD-10-PCS 2027 procedure code

F13ZG4ZAcoustic Reflex Patterns Assessment using Electroacoustic Immitance / Acoustic Reflex Equipment

✓ Valid for 2027

Short description: Acoust Reflex Pattern Assess w Acoust Immit/Reflex Equip

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 F13ZG4Z

F13ZG4Z is the ICD-10-PCS code for a hearing assessment procedure on the none using an acoustic reflex patterns approach with electroacoustic immitance / acoustic reflex (qualifier: none). In ICD-10-PCS, hearing assessment means measurement of hearing and related functions.

In plain terms, this corresponds to other auditory and vestibular function tests, the ICD-9-CM procedure title it maps to (95.46).

The same procedure with a different approach is coded F13Z84Z (tone decay), F13ZD4Z (tympanometry), F13ZF4Z (eustachian tube function), F13ZH4Z (acoustic reflex threshold), F13ZJ4Z (acoustic reflex decay) and F13ZP4Z (aural rehabilitation status).

With a different device, use F13ZG3Z (tympanometer) and F13ZGZZ (none).

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
GAcoustic Reflex Patterns

Defines site of lesion based upon presence/absence of acoustic reflexes with ipsilateral vs. contralateral stimulation

6. Equipment
4Electroacoustic Immitance / Acoustic Reflex
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 95.46Other auditory and vestibular function testsapproximate

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 F13ZG4Z

Is F13ZG4Z a valid ICD-10-PCS code for 2027?

Yes. F13ZG4Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for F13ZG4Z?

The CMS GEMs map F13ZG4Z to ICD-9-CM 95.46 (Other auditory and vestibular function tests).