What documentation does Anthem require for CPT 64493?

Clinical notes documenting axial pain pattern without radiculopathy; Conservative treatment documentation (4-6 weeks); Prior diagnostic block results with pain relief percentage (for therapeutic requests); Imaging guidance confirmation (fluoroscopy)

How much does Medicare pay for CPT 64493 in 2026?

In 2026, the national Medicare allowable for CPT 64493 is $190.39 in an office setting and $81.50 in a facility. Commercial allowables for Anthem are typically negotiated against this benchmark.

What if Anthem denies the PA for CPT 64493?

Appeal in writing within 60 days, citing the specific clinical policy criteria the case meets and attaching supporting documentation. Many denials are reversed on first-level appeal when the criteria language is mirrored.

Prior Authorization

Anthem Prior Authorization for CPT 64493

Site of service - Muscular/skeletal procedures (outpatient hospital/ASC only) · Standard commercial plans

Prior authorization REQUIREDApplies to all statesLast verified January 1, 2026 · Reviewed by the D3rx Clinical Billing Team

Source

Anthem clinical policy

Not medical advice. PA policies change frequently. Always confirm against the payer's current policy before submitting. d3rx pulls directly from publicly published policy PDFs and refreshes daily.

Clinical criteria

Anthem requires prior authorization for lumbar facet injection via Carelon. Axial low back pain without radiculopathy, failed 6 weeks conservative management. Diagnostic block must achieve >=50% pain relief to justify therapeutic injection. Maximum 3 therapeutic injections per region per year. Image guidance required for all facet procedures.

Documentation checklist

✓Clinical notes documenting axial pain pattern without radiculopathy
✓Conservative treatment documentation (4-6 weeks)
✓Prior diagnostic block results with pain relief percentage (for therapeutic requests)
✓Imaging guidance confirmation (fluoroscopy)

Submission channels

Phone

1-800-274-7767

2026 Medicare rate for CPT 64493

Office (non-facility)

$190.39

Facility

$81.50

Total RVUs (office)

5.70

Conversion factor

$33.4009

National Medicare Physician Fee Schedule amounts (GPCI 1.0). Anthem's commercial allowable is negotiated against this benchmark — see the full RVU and locality breakdown on the CPT 64493 code page.

How to submit the PA

1Verify the requirement against the current clinical policy linked above.
2Gather documentation: Clinical notes documenting axial pain pattern without radiculopathy, Conservative treatment documentation (4-6 weeks), Prior diagnostic block results with pain relief percentage (for therapeutic requests)….
3Submit via phone, or the payer portal.
4Document the reference number and follow up within 5 business days if no determination is received.

FAQ

Does Anthem require prior authorization for CPT 64493?: Yes. Anthem requires prior authorization for CPT 64493 (Site of service - Muscular/skeletal procedures (outpatient hospital/ASC only)) under Standard commercial plans per its published clinical policy.
What documentation does Anthem require for CPT 64493?: Clinical notes documenting axial pain pattern without radiculopathy; Conservative treatment documentation (4-6 weeks); Prior diagnostic block results with pain relief percentage (for therapeutic requests); Imaging guidance confirmation (fluoroscopy)
How much does Medicare pay for CPT 64493 in 2026?: In 2026, the national Medicare allowable for CPT 64493 is $190.39 in an office setting and $81.50 in a facility. Commercial allowables for Anthem are typically negotiated against this benchmark.
What if Anthem denies the PA for CPT 64493?: Appeal in writing within 60 days, citing the specific clinical policy criteria the case meets and attaching supporting documentation. Many denials are reversed on first-level appeal when the criteria language is mirrored.

Other Anthem PA lookups

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CPT 64493 prior authorization by payer

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