Coding experts Alicia and Laureen from CCO review the new 2025 ICD-10-CM code changes.
GP Modifier for Physio Therapy Services
September 11, 2014
The -GP modifier needs to be appended tophysio-therapy codes when submitting Medicare claims. However, be aware of differing policies for different types of payers. Chiropractors typically use the following Physical Medicine codes from the CPT book:97010thru97799(except for97597-97610for active wound care management). The current descriptor for the -GP modifier is "services delivered under an outpatient physical therapy plan of care".
Therapy services provided by a chiropractor, although non-covered, must be submitted according to the therapy guidelines of the local Medicare Contractor. Local policies can vary. For example,PalmettoGBAstates:
"Because these services are excluded from coverage by law ('statutorily excluded' from coverage), chiropractors are not required to submit claims for therapy services to PalmettoGBA."
If a claim is submitted for therapy services, it is necessary for doctors of chiropractic to include the -GP modifier. Therapy services submitted without the appropriate modifier will be rejected asunprocessable.
The -GY modifier should also be used to indicate that the service is statutorily excluded. Furthermore, it may be beneficial to include therapy codes on claims for statistical purposes, which may impact future coverage determination.
Source: PalmettoGBA, Jurisdiction 11, Part B, Chiropractic Services
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