Does I67.81 require prior authorization?

No, I67.81 does not require prior authorization (high confidence). Code is covered without prior authorization.

`I67.81` — Acute cerebrovascular insufficiency

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

When billing these procedures after carotid endarterectomy, include the surgery date and the phrase 'carotid endarterectomy' in the claim narrative.
When reporting a reduced (unilateral/limited) service, append modifier -52 and include an explanation of the reduced service in Item 19 of the CMS-1500 form or electronic equivalent; any appropriate supporting documentation may be submitted with the claim.
Follow Novitas LCD L35397 for the reasonable and necessary documentation requirements and frequency limitations, and consult NCCI edits for correct coding combinations prior to billing Medicare.
The patient's medical record must contain documentation that fully supports the medical necessity for the visual fields testing in accordance with the applicable LCD.

Non-invasive cerebrovascular arterial studies are covered when reasonable and necessary as defined by Novitas Local Coverage Determination (LCD) L35397.
Duplex post-interventional follow-up studies (typically limited and unilateral) are covered for evaluation after cerebrovascular intervention.
Vascular studies performed after carotid endarterectomy are covered when the claim includes the procedure date and the narrative 'carotid endarterectomy.'
Coverage for thoracic aortography and carotid, vertebral, and subclavian angiography is determined by Local Coverage Determination L35035; services are covered when reasonable and necessary per that LCD.
MRA is covered to evaluate blood flow in the internal carotid vessels of the head and neck.
MRA of peripheral arteries of the lower extremities is covered to determine the presence and extent of peripheral vascular disease and may substitute for conventional angiography (CA).

L35753 — Non-Invasive Cerebrovascular Studies

J05

A57592 — Billing and Coding: Non-Invasive Cerebrovascular Studies

J05

A56747 — Billing and Coding: Magnetic Resonance Angiography (MRA)

J06

A56551 — Billing and Coding: Visual Fields Testing

J06

L33574

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