F13ZF4ZEustachian Tube Function Assessment using Electroacoustic Immitance / Acoustic Reflex Equipment
- Billable / Specific Code
F13ZF4Z is a billable ICD-10-PCS procedure code for Eustachian Tube Function Assessment using Electroacoustic Immitance / Acoustic Reflex Equipment. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Hearing Assessment involves measurement of hearing and related functions. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Diagnostic audiology.
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | F | Physical Rehabilitation and Diagnostic Audiology |
| 2 | Section Qualifier | 1 | Diagnostic Audiology |
| 3 | Type | 3 | Hearing Assessment |
| 4 | BodySystem/Region | Z | None |
| 5 | TypeQualifier | F | Eustachian Tube Function |
| 6 | Equipment | 4 | Electroacoustic Immitance / Acoustic Reflex |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code testing of the hearing, open the FY 2027 ICD-10-PCS Alphabetic Index at Testing, then the subterm Hearing. The index leads to table F13, where the type qualifier, equipment and qualifier values shown in the breakdown above complete the seven-character code F13ZF4Z.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About F13ZF4Z
Is F13ZF4Z a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Eustachian Tube Function Assessment using Electroacoustic Immitance / Acoustic Reflex Equipment on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in F13ZF4Z mean?
The code breaks down character by character: the 1st character F is the Section (Physical Rehabilitation and Diagnostic Audiology); the 2nd character 1 is the Section Qualifier (Diagnostic Audiology); the 3rd character 3 is the Type (Hearing Assessment); the 4th character Z is the BodySystem/Region (None); the 5th character F is the TypeQualifier (Eustachian Tube Function); the 6th character 4 is the Equipment (Electroacoustic Immitance / Acoustic Reflex); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of F13ZF4Z?
Under the General Equivalence Mappings, Eustachian Tube Function Assessment using Electroacoustic Immitance / Acoustic Reflex Equipment crosswalks to ICD-9-PCS 95.46 (Other auditory and vestibular function tests). The mapping is approximate, so confirm it fits the documentation.
