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    v1.0.30
    OpenPayerBilling CodesDiagnostic Radiology (Diagnostic Imaging) Procedures of the Head and NeckCPT cpt-70010-posterior-cranial-fossa-contrast-imaging-interpretation
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    CPT 70010: CT Posterior Cranial Fossa With Contrast

    Medicare pays $50 on average nationally for this procedure.

    CPT code 70010 describes imaging supervision and interpretation for a CT study of the posterior cranial fossa performed with intravenous contrast to evaluate suspected posterior fossa pathology such as a brain tumor; service type: computed tomography (diagnostic imaging) typically performed in an outpatient radiology suite, hospital radiology department, or advanced imaging center.

    For related coverage guidance, see recent payer policy updates: Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM), Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®), Lumbar Microdiscectomy.

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    Clinical & Coding Specifications

    Clinical Context

    A 56-year-old patient presents to the emergency department with progressive headaches, new-onset gait instability, and episodes of vertigo. Neurologic exam demonstrates truncal ataxia and dysmetria consistent with posterior fossa involvement. The treating physician orders a contrast-enhanced imaging study to evaluate for a mass lesion in the posterior cranial fossa suspected to be a cerebellar tumor. The patient is screened for contrast allergy and renal function; informed consent is obtained for administration of contrast medium. The radiology department schedules the procedure in the hospital radiology suite. During the visit, a board-certified neuroradiologist or radiologist provides imaging supervision, contrast administration oversight, and formal interpretation of the study. Images are reviewed for tumor size, location (cerebellum, brainstem), mass effect, hydrocephalus, and enhancement pattern to guide neurosurgical or oncologic management. Post-procedure documentation includes contrast used, any immediate adverse reactions, comparison to prior imaging if available, and a signed interpretation report describing findings and impression relevant to a posterior cranial fossa tumor workup.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    70553Magnetic resonance (MRI) of brain with and without contrast materialOften performed as the primary or complementary imaging modality for posterior fossa tumor evaluation with contrast sequences
    70496Computed tomography, brain, with contrast material(s)Alternative cross-sectional study for patients who cannot undergo MRI; may be used for posterior fossa lesion assessment with contrast
    70544Magnetic resonance (MRI) of brain without contrast materialMay be performed in conjunction with contrast-enhanced sequences to provide baseline non-contrast imaging
    74177Computed tomography, abdomen and pelvis with contrastData not directly related to this cranial code but commonly ordered in oncologic staging workflows when systemic disease is suspected
    96372Therapeutic, prophylactic, or diagnostic injection (e.g., contrast agent administration)Represents administration of injectable contrast in some billing contexts when reported separately

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    261QV0200X
    2085R0001X
    364SP0812X
    207ZC0006X
    2086H0002X
    2278P1005X
    374U00000X
    2081N0008X

    Related Payer Policy Updates

    Specialty: Neurology/Neurosurgery1 / 3

    10 rows

    PolicyPayerEffective Date
    Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM)Kaiser Permanente2027-01-01
    Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®)bcbsvermont2026-11-01
    Lumbar Microdiscectomyuniverahealthcare2026-10-15
    Artificial Cervical Intervertebral Discuniverahealthcare2026-10-15
    Lumbar Decompressionuniverahealthcare2026-10-15
    Responsive Neurostimulation for Focal EpilepsyPremera Bluecross2026-10-14
    Intraoperative MonitoringProvidence Health Plan2026-10-01
    Intraoperative MonitoringProvidence Health Plan2026-10-01
    High-Intensity Focused UltrasoundMass General Brigham Health Plan2026-10-01
    Vagal Nerve StimulationAmbetter Nevada2026-10-01

    Related Codes

    CPT-70015-BASAL-CISTERN-BRAIN-IMAGING-SUPERVISION-INTERPRETATION

    CPT 70015: Basal Cistern Brain Imaging, Supervision and Interpretation

    CPT-70030-EYE-XRAY-FOREIGN-BODY-EVALUATION

    CPT 70030: Orbital X‑ray for Foreign Body Evaluation

    CPT-70100-MANDIBLE-X-RAY-ONE-TO-THREE-VIEWS

    CPT 70100: Mandible X‑ray, 1–3 Views

    CPT-70110-MANDIBLE-X-RAY-4-OR-MORE-VIEWS

    CPT 70110: Mandible X‑ray, Four or More Views

    CPT-70120-MASTOID-X-RAY-FEWER-THAN-3-VIEWS

    CPT 70120: Mastoid X‑ray, Limited (fewer than 3 views per side)

    CPT-70130-MASTOID-X-RAY-SERIES-MASTOIDITIS-VESTIBULAR-EVALUATION

    CPT 70130: Mastoid X‑ray, Minimum Three Views Per Side

    CPT-70134-INTERNAL-AUDITORY-CANAL-RADIOGRAPHY

    CPT 70134: X‑ray of Internal Auditory Canals and Temporal Bone

    CPT-70140-FACIAL-BONES-XRAY-FEWER-THAN-THREE-VIEWS

    CPT 70140: Facial Bones X‑Ray, Fewer Than Three Views

    CPT-70150-FACIAL-BONES-XRAY-THREE-VIEWS

    CPT 70150: Facial Bones X‑ray, Three Views

    CPT-70160-NASAL-BONES-XRAY-THREE-OR-MORE-VIEWS

    CPT 70160: Nasal Bones X‑ray, Three or More Views

    Showing 1–10 of 66

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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