R90.0 — Intracranial space-occupying lesion found on diagnostic imaging of central nervous system
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- For services requiring a referring/ordering physician, the referring/ordering physician's name and NPI must be reported on the claim.
- Diagnostic test claims should include the test result if known; if result is not available, report the symptoms that prompted the test.
- The patient's medical record must include the ordering provider's assessment related to the visit complaint, relevant medical history, results of pertinent tests/procedures, and a signed and dated office visit record or operative report.
- When using an Advance Beneficiary Notice of Non‑coverage (ABN) with modifier GA, the ABN Form CMS‑R‑131 must be signed by the beneficiary (or properly witnessed if refused) and Part A MAC claims require occurrence code 32 plus the ABN date.
Key Coverage Criteria
- CPT 88182 reports the physician professional and facility technical components of DNA ploidy and S-phase analysis of tumor by flow cytometry.
- CPT 88184 (first marker) and CPT 88185 (each additional marker) report the facility technical component of flow cytometric immunophenotyping for assessment of potential hematolymphoid neoplasia.
- Flow cytometry interpretation is reported using CPT codes 88187–88189 (one interpretation code per specimen).
- Quantitative cell counts by flow cytometry are billed using CPT codes 86355, 86356, 86357, 86359, 86360, 86361, and 86367.
- Flow cytometry services are payable under Medicare Part B at specified places of service according to CPT: groups of CPTs have defined allowable POS (see mapping in policy).
- MRA is covered to evaluate blood flow in the internal carotid vessels of the head and neck.
20 Active Policies
A56747 — Billing and Coding: Magnetic Resonance Angiography (MRA)
J06
A56758 — Billing and Coding: Non-Invasive Vascular Studies
J06
L33633 — Magnetic Resonance Angiography (MRA)
J06
L33627 — Non-Invasive Vascular Studies
J06
A57029 — Billing and Coding: Ultrasound, Soft Tissues of Head and Neck
Related Codes
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