Does R79.89 require prior authorization?

No, R79.89 does not require prior authorization (high confidence). Code is covered without prior authorization.

`R79.89` — Other specified abnormal findings of blood chemistry

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

All documentation must be maintained in the patient's medical record, be legible, include complete patient identification (e.g., full name, dates of service), and be made available to the contractor upon request.
Every submitted medical record page must include the legible signature of the physician or non-physician practitioner responsible for and providing the care.
The submitted medical record must support the use of the selected ICD-10-CM code(s) and the submitted CPT/HCPCS code must accurately describe the service performed.
If the service provider differs from the ordering/referring physician, the performing provider must maintain hard copy documentation of test results and interpretation plus copies of the ordering/referring physician’s order for the studies.

Coverage for non-emergent outpatient stress testing is subject to the reasonable and necessary requirements in Local Coverage Determination L35083 and is allowed only when L35083 clinical criteria are met.
Non-invasive vascular studies (duplex scan, physiologic studies, plethysmography, transcranial Doppler) are covered when ordered by the treating or consulting practitioner and medically necessary to evaluate, diagnose, or manage vascular disease.
Initial autogenous access vessel mapping should be billed with HCPCS codes 93985 or 93986 and is covered when medically necessary for surgical planning.
Subsequent autogenous access mapping may be billed with CPT codes 93970 or 93971 when clinically indicated.
Pre-surgical radial artery conduit mapping may be performed and accompanied by vein-mapping when either study shows insufficient conduits for multiple bypass procedures.
Immediate post-operative studies of an access or bypass site are covered if pulses are lost, become equivocal, or the patient develops signs or symptoms of ischemia suggesting need for repeat intervention.

A56758 — Billing and Coding: Non-Invasive Vascular Studies

J06

L33627 — Non-Invasive Vascular Studies

J06

L38396 — Cardiology Non-emergent Outpatient Stress Testing

J09

L33583 — Diagnostic and Therapeutic Esophagogastroduodenoscopy

J09

A56952

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