G40.001 — Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus
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 contain documentation that fully supports the medical necessity for the visual fields testing in accordance with the applicable LCD.
- Documentation should include relevant medical history, a physical examination, and results of pertinent diagnostic tests or procedures supporting the need for visual fields testing.
- The diagnosis code(s) reported on the claim must best describe the patient's condition for which the visual fields testing was performed.
- Refer to NCCI and OPPS requirements prior to billing Medicare to ensure coding compliance and to determine any bundling or packaging edits.
Key Coverage Criteria
- 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.
- Urine drug testing (UDT) and drugs-of-abuse testing are covered when reasonable and necessary per LCD L35006 and ordered on an individual patient basis by the treating clinician with medical-record documentation of medical necessity.
- Patients with a documented diagnosis consistent with substance use disorder (SUD) may qualify for an exception to the standard presumptive UDT annual limits.
- Ambulatory EEG is covered for diagnostic evaluation when seeking to detect clinical seizures or interictal epileptiform activity.
- Ambulatory EEG is covered for pre-surgical evaluation to localize seizure onset when capture of multiple seizures is needed for surgical planning.
- Ambulatory EEG is covered for routine follow-up monitoring of known seizure disorder or previously identified epileptiform activity.
20 Active Policies
A56551 — Billing and Coding: Visual Fields Testing
J06
L33574 — Visual Fields Testing
J06
L33399 — EEG Ambulatory Monitoring
J06
A57030 — Billing and Coding: EEG Ambulatory Monitoring
J06
A57667 — Billing and Coding: Special EEG Tests
Related Codes
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