Diagnostic Audiology (F1) ICD-10-PCS
The F1 body system covers Physical Rehabilitation and Diagnostic Audiology procedures on diagnostic audiology, with 302 ICD-10-PCS codes across 3 root operations, 296 of them billable in fiscal year 2026. 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 · 302 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| F13 | Hearing AssessmentMeasurement of hearing and related functions | 160 | 158 |
| F14 | Hearing Aid AssessmentMeasurement of the appropriateness and/or effectiveness of a hearing device | 108 | 106 |
| F15 | Vestibular AssessmentMeasurement of the vestibular system and related functions | 34 | 32 |
The info icon shows the official root operation definition and previews the codes in that range.
About the F1 Body System
The ICD-10-PCS root operation Diagnostic Audiology (Character F1) focuses on testing and measuring auditory and balance functions to assess hearing and vestibular health.
Within the Physical Rehabilitation and Diagnostic Audiology section, this operation is used to evaluate the function of the ears and related systems. For example, a Hearing Assessment (F13) measures the ability to hear sounds across various frequencies. A Hearing Aid Assessment (F14) evaluates how well a hearing device is working and its suitability for the patient. Additionally, a Vestibular Assessment (F15) measures the vestibular system, which controls balance and spatial orientation. These specialized codes capture detailed diagnostic testing essential for accurately documenting audiologic evaluations and supporting patient care in rehabilitation contexts.
Questions About This Page
How many codes are in the F1 body system?
The F1 body system contains 302 ICD-10-PCS codes in FY 2026, organized into 3 root operations. 296 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 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
