CPT 76800Radiology

Us exam spinal canal

CPT code 76800 covers an ultrasound examination of the spinal canal, typically performed on infants to evaluate the spine and spinal cord before the bones fully harden. This non-invasive imaging test uses sound waves to create pictures of the spinal structures.

Showing rates for

National Average

Base Medicare rate

$175.32

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

1.13

PE RVU (NF)

4.07

MP RVU

0.22

Total RVU

5.42

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

NCCI bundling edits

Loading bundling edits…

Billing tips

Document patient age at time of examination in radiology report and medical record, as this code is age-restricted to infants typically under 6 months when adequate acoustic window exists
Impact: Prevents automatic denials based on age; studies show 35-40% of denials for this code relate to patient age documentation issues
Ensure clinical indication clearly states specific concern (e.g., 'sacral dimple with concern for occult spinal dysraphism' rather than generic 'back pain') to support medical necessity
Impact: Increases first-pass approval rate by 25-30%; vague indications are the second most common denial reason for pediatric spinal ultrasound
Do not bill 76800 with same-session spinal MRI (72141-72158) as ultrasound is typically screening/preliminary; if both performed same day, ensure separate documentation justifies both studies
Impact: Prevents bundling denials and potential fraud flags; concurrent billing without justification can trigger audits and recoupment of the $175.32 payment
Verify that complete spinal canal survey was documented including conus position, filum terminale assessment, and evaluation for masses or tethering before billing as complete study
Impact: Incomplete documentation may support only reduced payment with modifier 52, decreasing reimbursement to approximately $87-$131 instead of full $175.32
For hospital-based billing, coordinate professional and technical component billing to avoid duplicate claims; 76800 has identical facility and non-facility rates ($175.32), but component splits must be accurate
Impact: Prevents claim rejections and payment delays; improper component billing can delay payment 30-45 days while claims are corrected

Live Field Datano reports yet

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.

Working with CPT 76800?

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.

Related actions

Common denials

Patient age exceeds typical window for spinal ultrasound (usually denied for patients over 6-12 months when ossification prevents adequate imaging)

How to appeal: Submit appeal with documentation of specific clinical factors permitting adequate acoustic window despite age (e.g., delayed ossification, specific spinal level evaluated). Include sample images demonstrating diagnostic quality and cite medical literature supporting ultrasound utility in this age range. Request peer-to-peer review with pediatric radiologist.

Medical necessity not established - payer considers indication cosmetic or not meeting coverage criteria (e.g., simple sacral dimple without other risk factors)

How to appeal: Provide detailed documentation of risk stratification criteria that justified imaging per clinical guidelines (AAP or specialty society recommendations). Include measurements of dimple location, associated cutaneous findings, or family history. Submit relevant clinical practice guidelines supporting screening in this clinical scenario.

Bundled with other same-day services or considered part of higher-level evaluation (e.g., denied when billed with comprehensive ultrasound examination)

How to appeal: Submit itemized documentation demonstrating 76800 was separate and distinct procedure with separate indication and interpretation. Use modifier 59 on corrected claim if appropriate. Provide separate formal reports for each procedure. Highlight different anatomic regions and clinical questions addressed by each study.

Incomplete documentation - report does not include all required elements for complete spinal canal examination per CPT definition

How to appeal: Obtain addended report from interpreting physician documenting all required components (conus position, filum terminale, presence/absence of masses, cord morphology). Submit corrected claim with complete documentation. If study was truly limited, consider rebilling with modifier 52 for reduced service with appropriate reduction in charge.

Frequently asked questions

What is the Medicare reimbursement rate for CPT code 76800 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 76800 is $175.32 for both facility and non-facility settings. This rate is based on 5.42 total RVUs (1.13 work RVU + 4.07 practice expense RVU + 0.22 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

At what age can you bill CPT 76800 for spinal ultrasound?

CPT 76800 is typically billable for infants under 6 months of age, though it may be performed up to 12 months in some cases where adequate acoustic windows persist due to delayed ossification. After posterior spinal elements ossify, ultrasound cannot adequately visualize spinal structures and MRI becomes the appropriate imaging modality. Documentation must support that adequate imaging was possible at the patient's age.

What diagnosis codes support medical necessity for CPT 76800?

Common supporting diagnosis codes include Q76.0 (spina bifida occulta), L82.5 (sebaceous nevus), Q82.5 (congenital non-neoplastic nevus over spine), R19.5 (abnormal finding on antenatal screening), Q05.x (spina bifida), Q06.x (other congenital malformations of spinal cord), and Z13.89 (encounter for screening for other disorder). The diagnosis should reflect the specific clinical concern prompting imaging.

Can you bill CPT 76800 with modifier 26 for professional component only?

Yes, modifier 26 can be appended to CPT 76800 when billing only the professional component (physician interpretation and report) separately from the technical component. This is common when a radiologist interprets a study performed at a hospital or imaging center that bills separately for the technical component using modifier TC.

What is the difference between CPT 76800 and 76817?

CPT 76800 is specifically for ultrasound examination of the spinal canal (typically infant spine), while CPT 76817 describes transvaginal obstetric ultrasound. These are completely different examinations serving different purposes. For pediatric applications, 76800 examines the spine while other ultrasound codes (76700 series) cover abdominal or other anatomic regions.

How many RVUs is CPT code 76800 worth in 2025?

CPT 76800 has 5.42 total RVUs in 2025, consisting of 1.13 work RVUs, 4.07 practice expense RVUs (both facility and non-facility), and 0.22 malpractice RVUs. These values are from the CMS Medicare Physician Fee Schedule RVU25A released December 23, 2024.

What are common reasons for CPT 76800 claim denials?

The most common denial reasons for CPT 76800 include patient age outside the typical imaging window (over 6-12 months), insufficient documentation of medical necessity for the specific indication, incomplete examination documentation missing required elements like conus position, and bundling with other same-day imaging services. Proper documentation of age, clinical indication, and complete study elements prevents most denials.