Does Z91.A3 require prior authorization?

No, Z91.A3 does not require prior authorization (high confidence). Covered without prior authorization.

`Z91.A3`, Caregiver's unintentional underdosing of patient's medication regimen

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

For services that require a referring/ordering physician, the referring/ordering physician's name and NPI must be reported on the claim.
The claim must include a valid ICD-10-CM diagnosis code that best describes the patient's condition for which the urine drug test was performed.
For diagnostic urine drug tests, report the test result if known; if the result is not known, report the symptoms that prompted the performance of the test.
This billing and coding guidance complements Local Coverage Determination L35724 and providers should follow LCD L35724 in conjunction with NCCI/OPPS rules when preparing claims.

Drug testing services are covered when they meet the medical necessity and coverage indications specified in LCD L36029.
Medicare Part B will pay for drug screening services when furnished in allowed places of service: office (11), urgent care (20), independent clinic (49), FQHC freestanding (50), RHC freestanding (72), and independent laboratory (81).
When a referring/ordering physician is required by the service or LCD, the test is covered if the ordering/referring physician is documented and the order meets the Local Coverage Determination criteria.
Urine drug testing performed as a diagnostic test or for clinical monitoring when there is a documented medical indication and a valid ICD-10-CM diagnosis code that best describes the patient's condition.
Presumptive (qualitative/IA) UDT is covered when medically necessary to immediately determine the presence or absence of drugs or drug classes to inform immediate clinical management.
Definitive (GC-MS or LC-MS/MS) UDT is covered when clinically indicated and medically necessary to identify specific medications, illicit substances, or metabolites that are inadequately detected by presumptive testing.

CGS-J15-L36029, Urine Drug Testing

J15

CGS-J18-L36029, Urine Drug Testing

J18

A59416, Billing and Coding: Urine Drug Testing

NGS-J6-L39611, Urine Drug Testing

NGS-JK-L39611, Urine Drug Testing

Ask Backwork about documentation requirements, denial risks, or coverage in your state.