Vein x-ray skull
CPT code 75870 covers a specialized x-ray procedure that visualizes the veins inside the skull, typically using contrast dye to see blood flow patterns in the brain's venous system.
This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
Loading bundling edits…
Billing tips
Always document the specific venous structures visualized (superior sagittal sinus, transverse sinuses, sigmoid sinuses, internal cerebral veins) and the clinical indication for venography versus non-invasive MRV or CTV
Impact: Prevents denials for lack of medical necessity which account for approximately 30% of claim rejections for this code
Bill contrast material separately using HCPCS codes (e.g., Q9965-Q9967) when facility is responsible for supply; contrast is not included in the 75870 reimbursement
Impact: Recovers additional $50-150 depending on contrast type and volume used
Verify that fluoroscopic guidance and imaging supervision are performed and documented by the interpreting physician; split billing between 26 and TC components when facility and professional services are separate
Impact: Ensures accurate component billing; TC component typically $95-100, professional component $59-64
Do not bill 75870 with catheter placement codes (36100-36248) without modifier 59 when catheterization is performed specifically for venography access
Impact: Prevents bundling denials and preserves full payment for both services when appropriately documented as distinct
Submit claims with ICD-10 codes that clearly support medical necessity such as I67.6 (nonpyogenic thrombosis of intracranial venous system), G93.2 (benign intracranial hypertension), or Q28.3 (cerebral arteriovenous malformation)
Impact: Reduces denial rate by 40-50% compared to non-specific headache or symptom codes
Document failed or inadequate non-invasive imaging (MRV or CTV) when venography is performed as a secondary study, as payers often require trial of less invasive methods first
Real billers contribute denial patterns and appeal strategies for this code. Once 5+ reports come in, you’ll see live aggregated data here — the only place this exists, free.
Get the free Revenue Protection Toolkit — the denial triggers, modifier pitfalls, and bundling conflicts that quietly cost you reimbursement. Instant download.
Help build the field knowledge
MedPayIQ gets smarter as billers contribute. If you've had this code denied, share what happened so others learn from it. Anonymous, no patient info.