G97.51 — Postprocedural hemorrhage of a nervous system organ or structure following a nervous system procedure
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- 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.
- This billing and coding article provides guidelines that complement Local Coverage Determination L34415 for CT of the abdomen and pelvis; consult LCD L34415 for specific coverage indications, limitations, and documentation requirements.
Key Coverage Criteria
- 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.'
- Duplex scan of lower extremity arteries is covered when medically necessary per LCD L33667, with the ordering/referring provider documenting signs and symptoms, relevant history (including known diagnoses and/or prior imaging) supporting evaluation of lower extremity arterial disease.
- CT or MRI scans of the head or neck are covered when the medical record documents the scan is reasonable and necessary for diagnostic evaluation.
- Coverage requires documentation supporting clinical indication such as history and physical exam findings, laboratory results, and signs or symptoms that justify the diagnostic test.
18 Active Policies
L35753 — Non-Invasive Cerebrovascular Studies
J05
A57592 — Billing and Coding: Non-Invasive Cerebrovascular Studies
J05
A57064 — Billing and Coding: Duplex Scan of Lower Extremity Arteries
J09
L33667 — Duplex Scan Of Lower Extremity Arteries
J09
A52992
Related Codes
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