X-ray exam of jaw <4views
CPT 70100 covers a basic X-ray examination of the jaw using fewer than four different views or angles. This diagnostic imaging helps identify fractures, infections, dental issues, or bone abnormalities in the mandible or maxilla.
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
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Billing tips
Accurately count the number of radiographic views before code selection; four or more views requires CPT 70110 instead of 70100
Impact: Incorrect code selection can result in $10-15 payment variance and potential audit flags for upcoding or undercoding
Always append modifier 26 or TC when splitting professional and technical components; bill global code only when providing both services
Impact: Prevents denials and recoupment; improper component billing can delay payment by 30-45 days pending clarification
Document the specific clinical indication and medical necessity in the order and interpretation report, especially for follow-up studies
Impact: Reduces denial rate by approximately 25-35% for repeat examinations and ensures compliance during audits
Verify the date of any prior jaw X-rays within the same episode of care to justify medical necessity for repeat imaging
Impact: Prevents denials for duplicate services; same-day repeats without documented clinical change face 60-80% denial rates
Link appropriate ICD-10 diagnosis codes that support the medical necessity such as trauma codes, dental disorder codes, or pain localization codes
Impact: Improves first-pass claim acceptance by 15-20%; generic pain codes without anatomic specificity increase denial risk
When billing in dental office settings, verify that your payer recognizes CPT codes versus CDT codes for radiographic procedures
Impact: Avoids automatic denials; some dental plans require CDT code D0330 instead, which can delay payment 2-3 weeks if filed incorrectly
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