Summary & Overview
HCPCS G8653: Hip Functional Status Not Measured, Patient Not Appropriate
HCPCS Level II code G8653 documents that a risk-adjusted functional status change score for a hip impairment was not measured because the patient did not complete the discharge functional status survey and was deemed not appropriate to do so. Nationally, this code matters for outcome reporting and quality measurement programs that rely on complete functional status data to assess hip-related recovery and provider performance. Proper use of the code helps clarify gaps in measured outcomes and prevents misattribution of missing data to care quality.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code's clinical and administrative purpose, the likely service settings where it applies, and the implications for quality reporting and claims documentation. The publication outlines what users can expect regarding benchmarks and reporting implications where available, summarizes policy and coding context related to functional status measurement exceptions, and provides practical clarity on documentation expectations tied to outcome measurement workflows.
This summary is intended for national audiences involved in billing, case management, quality measurement, and compliance who need a clear definition of when and why G8653 is used and what its presence on a claim signifies.
Billing Code Overview
HCPCS Level II code G8653 indicates a risk-adjusted functional status change residual score for hip impairment not measured because the patient did not complete the functional status (fs) survey near discharge, patient not appropriate. The code documents a situation in which a hip-related functional status outcome cannot be calculated due to the patient being deemed not appropriate to complete the required survey near discharge.
Service type: Outcome measurement / Functional status assessment exception
Typical site of service: Inpatient or post-acute settings where discharge functional status surveys are administered, such as acute hospitals, inpatient rehabilitation facilities, and skilled nursing facilities.
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Clinical & Coding Specifications
Clinical Context
A 78-year-old female admitted to an inpatient rehabilitation facility following a left femoral neck fracture treated with hemiarthroplasty is approaching discharge. The interdisciplinary team performs standardized outcome measurement using a functional status survey to calculate risk-adjusted functional status change for the hip impairment. The patient has cognitive impairment and severe hearing loss, and during the near-discharge window she is unable to reliably complete the self-reported portions of the survey despite proxy attempts. The facility documents that the risk-adjusted functional status change residual score for the hip impairment was not measured because the patient did not complete the functional status survey near discharge and the patient was not appropriate for testing. Clinical workflow: upon planning discharge, the rehabilitation nurse or therapist attempts the standardized functional status assessment; if the patient cannot complete the survey and there is documented reason (e.g., cognitive impairment, acute medical instability, refusal), the clinician records that the risk-adjusted functional status change residual score could not be calculated and assigns billing code G8653 to indicate the hip impairment measure was not obtained for appropriateness reasons.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
24 | Unrelated evaluation and management service by the same physician during a postoperative period |