Diagnostic Audiology (F1) ICD-10-PCS
The F1 body system covers Physical Rehabilitation and Diagnostic Audiology procedures on diagnostic audiology, with 151 ICD-10-PCS codes across 3 root operations, 148 of them billable in fiscal year 2027. Each root operation defines a distinct procedural objective, and the info icons show the official definition with a preview of the codes inside.
Root Operations in This Body System 3 operations · 151 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| F13 | Hearing AssessmentMeasurement of hearing and related functions | 80 | 79 |
| F14 | Hearing Aid AssessmentMeasurement of the appropriateness and/or effectiveness of a hearing device | 54 | 53 |
| F15 | Vestibular AssessmentMeasurement of the vestibular system and related functions | 17 | 16 |
The info icon shows the official root operation definition and previews the codes in that range.
About the F1 Body System
Diagnostic audiology measures hearing, how suitable or effective a hearing device is, and the vestibular system, which helps with balance.
The type character separates Hearing Assessment from Hearing Aid Assessment and Vestibular Assessment. Hearing Assessment measures hearing and related functions; Vestibular Assessment measures the vestibular system and related functions. The body system/region character lists only None, so it does not distinguish a region here.
Questions About This Page
How many codes are in the F1 body system?
The F1 body system contains 151 ICD-10-PCS codes in FY 2027, organized into 3 root operations. 148 of them are billable on inpatient claims.
What is a root operation?
The root operation is the third character of every ICD-10-PCS code and names the objective of the procedure. Drainage takes fluid out, Excision cuts out a portion of a body part, and Resection removes all of one. Picking the right root operation is the central skill of PCS coding, so each one above carries its official CMS definition.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
