Does I20.81 require prior authorization?

No, I20.81 does not require prior authorization (high confidence). Covered without prior authorization.

`I20.81`, Angina pectoris with coronary microvascular dysfunction

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

Progress notes must document medical necessity for the EKG monitoring service.
List the diagnosis code(s) indicating the reason for the test on the claim.
The physician interpreting the test must be identified on the claim form with his/her sequence number in Box 24K.
If an IDTF bills the total component, the physician's name and address must be on file with the WPS Provider Enrollment Department and the physician must provide a letter assigning monies collected for professional codes to the IDTF.

Holter monitoring (CPT 93224-93227) is covered for up to 48 hours of continuous recording when progress notes document medical necessity.
Wearable external mobile cardiac telemetry (CPT 93228 professional, 93229 technical) is covered as one unit per course of treatment that includes up to 30 consecutive days of cardiac monitoring when the documented services (hook-up, transmission, analysis, daily reports, equipment and supplies, and physician review) are provided.
Long-term continuous recorders (CPT 93241-93248) that continuously record and store for greater than 48 hours up to 7 days, or greater than 7 days up to 15 days, are covered in the outpatient setting when documentation supports medical necessity.
CCTA may be used to reliably rule out significant coronary artery disease (CAD) in patients with low to intermediate pre-test probability of CAD as an alternative to an imaging stress test.
CCTA may be used in a patient presenting with chest pain syndrome when the clinician has a high degree of suspicion that CAD is high on the differential diagnosis.
CCTA may be used to facilitate management in select patients who have an equivocal stress test or stress imaging result.

CGS-J15-L34045, Non-Invasive Vascular Studies

J15

CGS-J15-L40243, Temporary Nontherapeutic Ambulatory Cardiac Monitoring Devices

J15

CGS-J15-L33959, Cardiac Catheterization and Coronary Angiography

J15

CGS-J15-L34338, Transthoracic Echocardiography (TTE)

J15

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