State-specific medical necessity review (Ohio)

This guideline applies to Ohio; services described as unproven or subject to coverage/quantity limits will be reviewed for medical necessity under Ohio Administrative Code 5160-1-01.

CPT inclusion does not imply prior authorization

Presence of a CPT code in these guidelines does not mean the code requires prior authorization; inclusion is not evidence that PA is required.

Prior authorization may be required for 3D rendering (CPT 76376/76377)

Providers may be required to obtain prior authorization for CPT 76376 and 76377 even when the underlying ultrasound/echocardiography or base modality does not require PA; document concurrent physician supervision as defined.

• CPTs: 76376, 76377
• Document concurrent supervision/participation in 3D reconstruction per definition in the guideline

SPECT/CT coding and reporting — use appropriate CPTs

Report hybrid SPECT/CT studies with the appropriate CPT (e.g., 78830/78831/78832) and ensure correct modality-specific coding when submitting for authorization.

• Use CPT 78830, 78831, or 78832 for SPECT/CT submissions
• Follow modality/authorization processes for hybrid nuclear/CT studies

Prior authorization and reporting rules for PET/MRI

When PET/MRI is requested instead of PET/CT, prior authorization is expected only if PET/CT criteria are met and PET/CT is unavailable; report allowed PET/MRI as CPT 78813 + 76498 when criteria are met.

• Required code combination: CPT 78813 + CPT 76498
• Documentation must show PET/CT criteria are met and PET/CT is unavailable

Require prior clinical evaluation and documentation before advanced imaging

Obtain and document a pertinent clinical evaluation (history, exam) and prior imaging (plain x‑ray) showing that advanced imaging will affect management before requesting advanced studies.

• Submit history, physical exam, relevant labs, and prior imaging performed since symptom onset/change
• Plain x‑ray results from the current episode must be available to justify advanced imaging

Use specified nuclear medicine codes as alternatives to MRI/CT when justified

When MRI is contraindicated or not feasible, selected bone scan/SPECT CPT codes (e.g., 78300/78305/78306/78315; 78803/78830) are documented alternatives for stress/occult fractures and infection — follow plan PA rules when applicable.

• Nuclear alternatives: CPT 78300, 78305, 78306, 78315; CPT 78803, 78830
• Prior authorization follows general plan rules when required

Expectation to obtain prior authorization for advanced imaging when required

Advanced cross-sectional or nuclear imaging should only be ordered after required initial plain radiographs and when medical necessity criteria are met; obtain prior authorization per payer rules when required.

• Ensure plain x‑rays are performed and available prior to MRI/CT/nuclear studies
• Document clinical indications (size, growth, persistent symptoms, abnormal ultrasound) to support PA

Prior authorization required per payer rules for advanced imaging modalities

Per payer rules, prior authorization is required for advanced modalities (MRI, CT, nuclear medicine/SPECT/CT) when used for diagnosis, preoperative planning, or when MRI is contraindicated/unavailable; follow plan-specific authorization processes.

• PA typically required when advanced imaging is for diagnosis or surgical planning
• Follow payer/InterQual processes for authorization

Obtain prior authorization when advanced imaging is indicated and coverage criteria met

When an advanced imaging study is listed as medically necessary for a specific indication, ensure documentation meets coverage criteria (clinical indication, age, prior imaging) and obtain PA per plan rules if required.

• Document clinical indication and patient age
• Obtain PA when required by the treating plan

Whole‑body MRI for CRMO — prior authorization likely

Whole‑body MRI (CPT 76498) may be medically necessary for CRMO in specific situations (to avoid biopsy or for monitoring every 6–12 months); prior authorization is likely per payer rules.

• Report WBMRI using CPT 76498
• Document indication (suspected CRMO where MR findings would preclude biopsy or monitoring need)

Follow modality sequencing — ultrasound first for Baker cyst, MRI only if needed

Sequence imaging as directed: ultrasound (CPT 76881/76882) is the indicated initial study for Baker cyst; MRI (CPT 73721/73723) is medically necessary only for non‑diagnostic ultrasound or preoperative planning.

• Perform and document ultrasound before MRI for suspected Baker cyst
• If ultrasound non‑diagnostic or surgery planning required, order MRI CPT 73721 or 73723

Use InterQual and payer-specific prior authorization processes

Follow payer and InterQual authorization processes when submitting requests; InterQual is used for primary medical/surgical criteria and UnitedHealthcare policies apply when InterQual is not available.

• Use InterQual criteria when applicable
• Check payer-specific submission processes for PA

No explicit prior authorization requirements in this excerpt — check plan rules

No additional explicit PA procedures are specified in these document excerpts; follow plan-specific PA requirements and check governing benefit rules.

• Confirm plan PA requirements as they may vary
• Refer to federal/state/contractual rules if conflicts arise

Clinician judgment may override guideline recommendations with documentation

Guidelines do not replace clinician judgment; physicians may override guidelines when clinically appropriate and must document the reason for deviation.

• Document clinical rationale when overriding guideline recommendations
• Use independent medical judgment considering individual circumstances

Stepwise imaging approach — obtain initial tests and try conservative care first

Use a stepwise imaging approach: obtain results of initial diagnostic tests (history, exam, plain x‑ray, ultrasound) and continue conservative care if improving before ordering advanced imaging unless results will change management.

• Obtain initial test results before advanced imaging
• Continue conservative therapy when appropriate; advanced imaging required if it will change management

Do not use CPT 76380 to cover extra CT slices; justify limited CT use

Do not use CPT 76380 to report 'extra slices' in conjunction with other diagnostic CT codes; limited CT (CPT 76380) must be clinically justified and documented and is not medically necessary for treatment planning.

• Avoid billing CPT 76380 with other diagnostic CT codes to cover additional slices
• Document rationale and limited protocol when CPT 76380 is used

Conservative care should precede advanced imaging when clinical improvement is occurring

Continue conservative therapy prior to advanced imaging when the patient is improving; order advanced imaging when results are expected to affect management or when guideline exceptions permit earlier imaging.

• Advanced imaging is indicated when it will change immediate treatment decisions
• For many stress/occult fractures, follow-up plain x‑rays after 10–14 days of conservative care are expected unless high‑risk site

Follow-up plain x‑ray interval guidance (10–14 days) for stress/occult fractures

Follow-up plain x‑ray intervals for suspected stress/occult fractures: obtain repeat x‑rays typically at 10–14 days (often 10 days; some sites 14 days) before advanced imaging except for high‑risk locations where immediate MRI/CT is allowed.

• Usual follow-up interval: 10–14 days depending on site
• High‑risk sites (pelvis, sacrum, hip, femur, tibia, tarsal navicular, proximal 5th metatarsal, scaphoid) may proceed directly to MRI/CT

Preferred imaging sequence: plain x‑ray → ultrasound (if needed) → MRI/CT as indicated

Begin evaluation with clinical exam and plain radiographs; if x‑ray is negative proceed to ultrasound for superficial masses and to MRI (preferred) or CT when indicated per criteria.

• Start with history, exam, and plain x‑rays
• Use ultrasound (CPT 76881/76882) for superficial masses if x‑ray negative
• Proceed to MRI when indicated; CT if MRI contraindicated or unavailable

MRI preferred when available; CT/nuclear as acceptable alternatives when MRI unavailable/contraindicated

When MRI is available and not contraindicated, MRI without contrast is preferred over CT or nuclear studies for pediatric musculoskeletal imaging; CT or nuclear studies are acceptable alternatives only if MRI is contraindicated or unavailable.

• Prefer MRI without contrast for soft tissue and bone marrow evaluation
• Use CT or nuclear modalities only if MRI is contraindicated/unavailable

When MRI unavailable for infection, obtain bone scan or SPECT/CT as next step

If MRI cannot be performed for suspected osteomyelitis or multifocal infection, bone scan or SPECT/CT is an accepted next step; combine labeled leukocyte and marrow imaging when altered marrow distribution is present.

• Use bone scan (CPT 78300/78305/78306/78315) or SPECT/CT (CPT 78830/78832) when MRI not feasible
• Consider labeled leukocyte scan plus marrow imaging (CPT 78800‑78803 with 78102‑78104) for prosthesis/hardware cases

Denial risk for investigational/clinical‑trial imaging and data‑collection studies

Requests for services stated as unproven or for data collection (e.g., clinical trial imaging not used in direct care) will be evaluated and may be denied as not medically necessary under Ohio Administrative Code review.

• Imaging for data collection not used in direct clinical management is not medically necessary
• Clinical trial imaging may be denied if inconsistent with clinical standards

Clinical trial/investigational imaging — denial risk

Imaging inconsistent with established clinical standards or requested solely for research/data collection is not medically necessary and may be denied.

Overutilization and duplicate imaging — denial risk

Requests for duplicate, questionably necessary, or 'double contrast' CT studies, and MRI ordered solely to avoid radiation, may be scrutinized and denied for overutilization.

• Avoid duplicate imaging if prior study answers the clinical question
• Do not order CT without and with contrast ('double contrast') unless clearly indicated

Denial risk for unnecessary repeat or pre‑operative imaging

Repeat imaging or pre‑operative imaging that is not medically necessary (for example when the underlying surgery is not medically necessary) may lead to denial.

• Ensure surgery/procedure is medically necessary before approving pre‑operative imaging
• Document how repeat imaging will affect management

Whole‑body CT screening for asymptomatic individuals is not covered

Whole‑body CT or LifeScan for screening asymptomatic individuals is not a covered benefit; such claims will be denied.

Denial risk for WBMRI outside select indications; use CPT 76498 when allowed

Requests for whole‑body MRI are likely to be denied except for select cancer predisposition syndromes or specific autoimmune indications (e.g., CRMO); WBMRI must be reported with CPT 76498.

• WBMRI generally not medically necessary outside select indications
• Report whole‑body MRI using CPT 76498 when allowed

Denial risk if pre‑imaging clinical evaluation or basic imaging is not documented

Advanced imaging may be denied if there is no documented pertinent clinical evaluation (history, exam, labs, and basic imaging) demonstrating need prior to the study.

• Submit history, physical, labs, and prior x‑rays when requesting advanced imaging
• A meaningful technological contact may satisfy evaluation in some cases

Denial risk if plain x‑ray not performed or documented before advanced imaging for fractures

Failure to perform or document an initial plain x‑ray prior to advanced imaging for suspected acute, stress, or occult fractures may lead to denial unless guideline exceptions for high‑risk sites are met.

• Plain x‑rays should be performed and documented before advanced imaging except for listed high‑risk sites
• If x‑rays are negative but suspicion persists, document why advanced imaging is needed

Imaging sequence requirement — plain x‑ray required before many advanced studies

Advanced imaging without prior appropriate clinical evaluation and plain radiographs may not meet guideline expectations; plain x‑rays are required before advanced imaging for soft tissue masses and bone lesions.

• Plain x‑rays of the entire bone containing a lesion are required prior to advanced imaging for bone masses
• For soft tissue masses, document location, size, and pain association before MRI

Ultrasound screening eligibility for DDH — strict age/risk criteria

Screening hip ultrasound is indicated only for infants aged 4 weeks to 4 months with risk factors (breech, family history, abnormal exam); routine ultrasound screening in neonates/infants without risk factors may be denied.

• Eligible screening age: 4 weeks–4 months with listed risk factors
• For 4–6 months use plain x‑ray as initial modality

Screening limits for asymptomatic contact children (>24 months not indicated)

No routine imaging is medically necessary in asymptomatic contact children older than 24 months; requests for routine imaging in this group may be denied.

• Contacts <12 months: neuroimaging + skeletal survey required
• Contacts 12–24 months: skeletal survey required; >24 months: no routine imaging

Pre‑imaging clinical evaluation must be documented to avoid denial

Advanced imaging should be considered only after a pertinent clinical evaluation including detailed history, exam, and plain x‑rays; failure to document these prior steps may result in denial.

• Document detailed history, physical exam, and plain x‑rays prior to advanced imaging requests
• Show how imaging results will affect immediate treatment decisions

Denial risk for MRI for Baker cyst without prior non‑diagnostic ultrasound

Ordering MRI for a Baker cyst without first obtaining ultrasound or documenting that ultrasound was non‑diagnostic may risk denial; document prior ultrasound results.

• Perform and document ultrasound (CPT 76881/76882) before MRI for Baker cyst evaluation
• If ultrasound non‑diagnostic, document reason to proceed to MRI

Denial risk for MRI in SCFE without required plain radiographs documented

Requesting MRI for SCFE without documented AP and lateral (frog‑leg or cross‑table lateral) radiographs of both hips may be denied unless clinical notes justify MRI after negative films.

• Document AP and lateral hip radiographs prior to MRI for SCFE evaluation
• If films negative but suspicion persists, document clinical rationale for MRI (CPT 73721/73723)

Check governing benefit rules (federal/state/contractual) before applying policy

Coverage decisions must reference applicable federal, state (OAC) or contractual benefit rules; conflicts are governed by those requirements which may change coverage determinations.

• Check federal/state/contractual requirements before using this policy
• In case of conflict, federal/state/contractual rules govern

No explicit denial/authorization procedures in excerpt — verify plan processes

No specific denials or authorization procedures are detailed in these excerpts; providers should verify plan‑specific PA and denial processes.

• Confirm plan PA and denial workflows with payer
• Refer to full policy and plan documents for detailed procedures

Contrast considerations — renal impairment, pregnancy, allergy (GFR <30 mL/min)

When contrast is a concern (renal impairment, pregnancy, allergy), follow guideline rules: CT without contrast for renal insufficiency or elevated BUN/creatinine; GFR <30 mL/min indicates contrast risk for both CT and MRI.

• Use CT without contrast for individuals with renal insufficiency or elevated BUN/creatinine
• GFR <30 mL/min is a contrast risk threshold for CT and MRI

Gadolinium contrast — limit use and document necessity

Limit gadolinium‑based contrast agent exposure: reserve GBCA use for situations where contrast provides additional necessary diagnostic information and assess need for repetitive GBCA‑enhanced MRIs.

• Weigh GBCA risks and document necessity when ordering contrast MRI
• If anesthesia IV access present, consider performing without and with contrast in same session to avoid repeat anesthesia

PET/MRI documentation and coding when substituting for PET/CT

When PET/MRI is requested in lieu of PET/CT, document that PET/CT criteria are met and PET/CT is unavailable; report PET/MRI as CPT 78813 + 76498 and include supporting justification in the medical record.

• Required reporting: CPT 78813 + CPT 76498
• Provide documentation showing PET/CT criteria met and PET/CT unavailable