Does T45.AX6A require prior authorization?

No, T45.AX6A does not require prior authorization (high confidence). Covered without prior authorization.

`T45.AX6A`, Underdosing of immune checkpoint inhibitors and immunostimulant drugs, initial encounter

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

When E/M services are reported with allergy testing, medical documentation of the separately identifiable E/M service must be present in the medical record and modifier -25 must be used.
Part B providers must indicate the actual number of tests (one unit per antigen/test) in Box 24G of Form CMS-1500 (paper) or in the service field on EMC claims; the number of tests must also be shown on the claim for MPFSDB payment.
Medical records must document history (including immunologic history), physical exam, antigens chosen, test performance, and interpretation; counseling and prescriptions should be documented and reported as a visit.

Allergy testing is covered when the patient has clinically significant allergic symptoms and conservative therapy has failed.
Allergy testing includes performance, evaluation, and reading of cutaneous and mucous membrane tests together with physician history (including immunologic history), physical examination, antigen selection, and interpretation of results.
Standard skin testing is the preferred method when allergy testing is necessary.
When a percutaneous or intracutaneous single test (CPT 95004 or 95024) and sequential/incremental tests (CPT 95017, 95018, 95027) are performed the same day, both code types may be reported only if they are for different allergens or for different dilutions of the same allergen.
CPT code 95060 is payable in office, outpatient hospital (on-campus/off-campus), inpatient hospital, and emergency room settings.
Erythrocyte sedimentation rate (ESR) testing is covered only when reasonable and necessary as defined by Local Coverage Determination L34021.

WPS-J5-L36402, Allergy Testing

A57473, Billing and Coding: Allergy Testing

WPS-J8-L36402, Allergy Testing

FIRST_COAST-L34021, Sedimentation Rate, Erythrocyte

A57657, Billing and Coding: Sedimentation Rate, Erythrocyte