CPT 70010Radiology

Contrast x-ray of brain

CPT code 70010 covers a contrast x-ray examination of the brain, also known as pneumoencephalography, where air or gas is injected into the spinal canal to visualize brain structures on x-ray films.

Showing rates for

National Average

Base Medicare rate

$56.61

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

Work RVU

1.19

PE RVU (NF)

0.44

MP RVU

0.12

Total RVU

1.75

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always append modifier 26 or TC to indicate component billing unless your facility performs both professional and technical components
Impact: Prevents automatic denials and ensures correct payment of $56.61 total or appropriate component split
Include extensive medical necessity documentation explaining why modern CT or MRI imaging is contraindicated or unavailable
Impact: Critical for claim approval; lack of justification results in 80-90% denial rate for this obsolete procedure
Verify payer coverage policies before scheduling as most insurers consider 70010 obsolete and may have automatic denial edits
Impact: Prevents surprise denials; consider pre-authorization which may add 2-3 weeks but ensures payment
Document all contraindications to CT/MRI (metal implants, claustrophobia unresponsive to sedation, equipment unavailability in emergent situations)
Impact: Increases approval rate from approximately 15% to 60-70% with robust contraindication documentation
Bill on same claim as any associated diagnostic codes for ventricular abnormalities or structural brain pathology with clear linkage
Impact: Strengthens medical necessity; improves first-pass claim approval rate by approximately 25%
Be prepared for peer-to-peer review requests; have performing radiologist available to discuss clinical rationale
Impact: Required in approximately 70% of claims; successful peer review converts 50% of initial denials to approvals

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Frequently asked questions

What is CPT code 70010 used for?

CPT 70010 is used for pneumoencephalography, a contrast x-ray examination of the brain where gas is injected into the spinal canal to visualize brain structures. This procedure is now obsolete and has been almost entirely replaced by CT and MRI imaging since the 1980s.

How much does Medicare pay for CPT 70010 in 2025?

Medicare pays $56.61 for CPT 70010 in 2025 under the national average non-facility rate. The facility rate is also $56.61. This rate is based on 1.75 total RVUs (1.19 work RVU, 0.44 PE RVU, 0.12 MP RVU) multiplied by the 2025 conversion factor of 32.3465.

Is CPT 70010 still used in modern medical practice?

CPT 70010 is extremely rarely used in modern practice. Pneumoencephalography has been replaced by non-invasive CT and MRI imaging since the 1980s. Any current use would require extensive documentation of why modern alternatives are contraindicated or unavailable.

What modifiers are commonly used with CPT 70010?

The most common modifiers for CPT 70010 are modifier 26 (professional component only) and TC (technical component only) to split billing between interpretation and equipment. Modifier 52 (reduced services) or 53 (discontinued procedure) may be used if the procedure cannot be completed, and modifier 59 may be necessary if billed with other imaging to indicate distinct services.

Why would CPT 70010 be denied by insurance?

CPT 70010 is frequently denied because insurers consider it obsolete and not medically necessary when CT and MRI are available. Common denial reasons include lack of documentation explaining contraindications to modern imaging, insufficient medical necessity justification, missing prior authorization, or automatic denial edits for this rarely-used code.

What documentation is needed to bill CPT 70010?

Billing CPT 70010 requires comprehensive documentation including specific indications, documented contraindications to CT and MRI, informed consent, details of the contrast agent used, number of radiographic views, detailed interpretation, and a strong medical necessity statement explaining why this obsolete procedure was necessary instead of modern alternatives.

What is the difference between CPT 70010 and modern brain imaging codes?

CPT 70010 is an invasive x-ray procedure requiring gas injection into the spinal canal, while modern brain imaging uses CT (70450-70470) or MRI (70551-70553) which are non-invasive. The modern codes have higher reimbursement rates (typically $150-$500+) and are considered standard of care, whereas 70010 is obsolete with a 2025 Medicare rate of only $56.61.