HCPCS Level II · Procedures and professional services (temporary)
G8566Patient is not eligible for the "referral for otologic evaluation for sudden or rapidly progressive hearing loss" measure
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G8566
G8566 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing patient is not eligible for the "referral for otologic evaluation for sudden or rapidly progressive hearing loss" measure.
It was added to HCPCS effective 01/01/2010.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Pt inelig ref oto eval
- Date added
- 01/01/2010
- Action effective
- 01/01/2010
- BETOS
- M5D
Related G85xx codes
- G8510Screening for depression is documented as negative, a follow-up plan is not required
- G8511Screening for depression documented as positive, follow-up plan not documented, reason not given
- G8535Elder maltreatment screen not documented; documentation that patient is not eligible for the elder maltreatment screen at the time of the encounter related to one of the following reasons: (1) patient refuses to participate in the screening and has reasonable decisional capacity for self-protection, or (2) patient is in an urgent or emergent situation where time is of the essence and to delay treatment to perform the screening would jeopardize the patient's health status
- G8536No documentation of an elder maltreatment screen, reason not given
- G8539Functional outcome assessment documented as positive using a standardized tool and a care plan based on identified deficiencies is documented within two days of the functional outcome assessment
- G8540Functional outcome assessment not documented as being performed, documentation the patient is not eligible for a functional outcome assessment using a standardized tool at the time of the encounter
- G8541Functional outcome assessment using a standardized tool not documented, reason not given
- G8542Functional outcome assessment using a standardized tool is documented; no functional deficiencies identified, care plan not required
- G8543Documentation of a positive functional outcome assessment using a standardized tool; care plan not documented within two days of assessment, reason not given
- G8559Patient referred to a physician (preferably a physician with training in disorders of the ear) for an otologic evaluation
- G8560Patient has a history of active drainage from the ear within the previous 90 days
- G8561Patient is not eligible for the referral for otologic evaluation for patients with a history of active drainage measure
Common questions about G8566
Is HCPCS G8566 still valid?
- Yes. G8566 is active in the CMS October 2026 HCPCS file.
Does Medicare cover G8566?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.