I77.75 — Dissection of other precerebral arteries
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- The patient's medical record must fully document medical necessity for the cardiac catheterization and support the diagnosis and procedures billed.
- Each claim must include ICD-10-CM diagnosis code(s) that accurately reflect the patient's condition and reason for the procedure and these codes must be linked to the CPT procedure codes on the claim.
- When a referring/ordering physician is required, the name and NPI of the referring/ordering physician must be reported on the claim; for extra-cardiac angiographic services the treating physician's name and NPI must be submitted in items 17/17a of CMS-1500 or electronic equivalent.
- For patients post-heart transplant without evidence of rejection, use primary diagnosis Z09 (follow-up after completed treatment) and secondary diagnosis Z94.1 (heart transplant status); add the underlying disorder code when coding I25.82 or I31.4.
Key Coverage Criteria
- Medicare Part B covers the professional component of cardiac catheterization and coronary angiography when performed in hospital inpatient and outpatient facility settings.
- Diagnostic cardiac catheterization performed in an office setting (where permitted) is covered under Medicare Part B for both professional and technical components.
- Global and technical component procedures are covered under Part B when performed under personal physician supervision in an IDTF, free-standing facility, physician office, or physician-directed clinic (physician present in room for entire procedure).
- 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.
- Continuous intraoperative neurophysiologic monitoring provided one-on-one in the operating room (CPT 95940) is covered when it supports the covered indications in LCD L35003.
- Report continuous intraoperative neurophysiologic monitoring in the operating room (95940) in addition to monitoring services provided from outside the operating room (G0453); coverage includes interpretation of baseline studies and removal of electrodes at the end of the procedure when supporting the LCD indications.
20 Active Policies
A56758 — Billing and Coding: Non-Invasive Vascular Studies
J06
A52850 — Billing and Coding: Cardiac Catheterization and Coronary Angiography
J06
L33627 — Non-Invasive Vascular Studies
J06
L33633 — Magnetic Resonance Angiography (MRA)
J06
L33557
Related Codes
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