G8661 — Risk-adjusted functional status change residual score for the low back impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriate
G8661 is a HCPCS Level II code for risk-adjusted functional status change residual score for the low back impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriate. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
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The CMS record for G8661
- Long descriptor
- Risk-adjusted functional status change residual score for the low back impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriate
- Short descriptor
- Rafscrs lbi no scor
- Added
- January 1, 2011
- BETOS
- M5B
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G8661
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G8661 is not quite right, the correct code is very often within a few positions of it.
- G8653Risk-adjusted functional status change residual scores for the hip impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriateterminated
- G8654Residual score for the hip impairment not measured because the patient did not complete the lepf prom at initial evaluation and/or near discharge, reason not given
- G8655Residual score for the lower leg, foot or ankle impairment successfully calculated and the score was equal to zero (0) or greater than zero ( > 0)
- G8656Residual score for the lower leg, foot or ankle impairment successfully calculated and the score was less than zero (< 0)
- G8657Risk-adjusted functional status change residual score for the lower leg, foot or ankle impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriateterminated
- G8658Residual score for the lower leg, foot or ankle impairment not measured because the patient did not complete the lepf prom at initial evaluation and/or near discharge, reason not given
- G8659Residual score for the low back impairment successfully calculated and the score was equal to zero (0) or greater than zero (> 0)
- G8660Residual score for the low back impairment successfully calculated and the score was less than zero (< 0)
- G8662Residual score for the low back impairment not measured because the patient did not complete the low back fs prom at initial evaluation and/or near discharge, reason not given
- G8663Residual score for the shoulder impairment successfully calculated and the score was equal to zero (0) or greater than zero (> 0)
- G8664Residual score for the shoulder impairment successfully calculated and the score was less than zero (< 0)
- G8665Risk-adjusted functional status change residual score for the shoulder impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriateterminated
- G8666Residual score for the shoulder impairment not measured because the patient did not complete the shoulder fs prom at initial evaluation and/or near discharge, reason not given
- G8667Residual score for the elbow, wrist or hand impairment successfully calculated and the score was equal to zero (0) or greater than zero (> 0)
- G8668Residual score for the elbow, wrist or hand impairment successfully calculated and the score was less than zero (< 0)
- G8669Risk-adjusted functional status change residual score for the elbow, wrist or hand impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriateterminated
Questions about G8661
What is HCPCS code G8661?
G8661 is a HCPCS Level II code for risk-adjusted functional status change residual score for the low back impairment not measured because the patient did not complete the fs status survey near discharge, patient not appropriate. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G8661?
The CMS HCPCS file marks G8661 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is G8661 paid under the physician fee schedule?
G8661 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.