UnitedHealthcare Pain Management Procedures prior authorization requirements (2026)

Medical-necessity criteria UnitedHealthcare generally applies

[NEEDS CLINICAL SPOT-CHECK] Two UnitedHealthcare Commercial and Individual Exchange medical policies govern this code group. (A) FACET JOINT INJECTIONS / MEDIAL BRANCH BLOCKS (64490-64495) — Policy 2026T0004VV, "Facet Joint and Medial Branch Block Injections for Spinal Pain", effective 2026-05-01. PROVEN AND MEDICALLY NECESSARY (verbatim): "An initial diagnostic Facet Joint Injection/Medial Branch Block to determine facet joint origin when all the following criteria are met: Pain is exacerbated by facet loading maneuvers on physical examination (e.g., hyperextension, rotation); and Clinically significant improvement has not occurred (the pain remains at a 3 or more on a 1-10 pain scale) after a minimum of 4 weeks of conservative care (including but not limited to pharmacotherapy, exercise, or physical therapy); and Clinical findings and imaging studies suggest no other cause of the pain (e.g., spinal stenosis with neurogenic claudication, disc herniation with radicular pain, infection, tumor, fracture, pain related to prior surgery); and The spinal motion segment is not fused; and A radiofrequency joint denervation/ablation procedure is being considered". A second block is medically necessary (verbatim) when "Administered at the same level and side as the initial block; and The initial diagnostic Facet Joint Injection produced a positive response, as demonstrated when all the following criteria are met: For at least the expected minimum duration of the effect of the local anesthetic; and Functional improvement that is specific to the individual, with demonstrable improvement in the physical functions previously limited by the facetogenic pain; and A radiofrequency joint denervation/ablation procedure is being considered". UNPROVEN AND NOT MEDICALLY NECESSARY for facet injections / MBB (verbatim): "If a radiofrequency ablation procedure is not considered as a treatment option at the requested level(s); For treating spinal pain after diagnostic injections have been completed; After two Facet Joint Injections/Medial Branch Blocks at the same level and same side (this is considered therapeutic rather than diagnostic); Therapeutic Facet Joint Injections and/or Facet Nerve Block (i.e., Medial Branch Block) for treating chronic spinal pain; For a second Facet Joint Injection/Medial Branch Block if the initial injection did not confirm the joint as the source of pain; In the presence of untreated Radiculopathy at the same level as the intended diagnostic injection (with the exception of Radiculopathy caused by a facet joint synovial cyst); If injection of volume of local anesthetics exceeds 0.5 mL for Medial Branch Blocks; When performed under ultrasound guidance". And (verbatim): "Therapeutic Facet Joint/Medial Branch Block Injections at the cervical, thoracic, and lumbar levels of the spine are unproven and not medically necessary due to insufficient evidence of efficacy and safety." (B) ABLATION (64633-64636 and related) — Policy 2026T0107II, "Ablative Treatment for Spinal Pain", effective 2026-02-01. Verbatim note: "Conventional (Thermal) Radiofrequency Ablation requires site of service review." UHC defines Conventional (Thermal) Radiofrequency Ablation (verbatim) as requiring "Temperature >= 60 degrees C; and Duration of ablation >= 40 seconds; and Confirmation of needle placement by fluoroscopic-guided imaging". UNPROVEN AND NOT MEDICALLY NECESSARY (verbatim): "Pulsed Radiofrequency Ablation of the facet nerves of the cervical, thoracic, or lumbar region, sacral nerve root, or dorsal root ganglion; Endoscopic radiofrequency ablation/endoscopic rhizotomy; Cryoablation (cryodenervation, cryoneurolysis, cryosurgery, or cryoanesthesia); Cooled Radiofrequency Ablation; Chemical ablation (including but not limited to alcohol, phenol, or sodium morrhuate); Laser ablation (including pulsed, continuous, or low level)". Also verbatim: "Ablation for treating sacroiliac pain is unproven and not medically necessary due to insufficient evidence of efficacy" (this reaches CPT 64625) and "Intraosseous radiofrequency ablation of the basivertebral nerve (e.g., Intracept) for the treatment of spinal pain is unproven and not medically necessary due to insufficient evidence of efficacy". (C) SACROILIAC JOINT INJECTION (27096) — 27096 appears on UHC's site-of-service office-based program list, but Praxigen did NOT locate a UHC commercial medical policy stating clinical criteria for 27096 on 2026-08-07. No criteria are asserted for 27096 on this row; verify separately. WHEN PRIOR AUTHORIZATION IS ACTUALLY REQUIRED (from "Prior Authorization Requirements for UnitedHealthcare", effective 2026-01-01): the "Site of service (SOS) — office-based program" states verbatim "Prior authorization required if performed in an outpatient hospital setting or ASC. Prior authorization not required if performed in an office," and lists Musculoskeletal codes 27096, 64479, 64490, 64493 and Neurologic codes 62270, 62321, 64633, 64635. New Jersey is not among the states exempt from SOS. 64490-64495 additionally require PA in all places of service ONLY for members receiving facet treatment in Arizona.

Commonly required documentation

• For facet/MBB: physical-exam documentation of pain exacerbated by facet loading maneuvers
• documented pain score of 3 or more on a 1-10 scale after a minimum of 4 weeks of conservative care
• imaging and clinical findings excluding other causes
• documentation the motion segment is not fused
• explicit documentation that radiofrequency denervation/ablation is being considered. For a second block: same level and side plus documented positive response with functional improvement. For ablation: documentation of thermal parameters (>= 60 degrees C, >= 40 seconds) and fluoroscopic confirmation of needle placement, plus the site-of-service review.

How to submit

• Method: Online via the Prior Authorization and Notification tool on the UnitedHealthcare Provider Portal (sign in with One Healthcare ID).
• Portal: UnitedHealthcare Provider Portal — Prior Authorization and Notification tool

Sources & verification

• BindingSource — Facet Joint and Medial Branch Block Injections for Spinal Pain — UnitedHealthcare Commercial and Individual Exchange Medical Policy (2026T0004VV) · effective 2026-05-01.View
• BindingSource — Ablative Treatment for Spinal Pain — UnitedHealthcare Commercial and Individual Exchange Medical Policy (2026T0107II) · effective 2026-02-01.View
• BindingSource — Prior Authorization Requirements for UnitedHealthcare (Commercial Plan), Effective January 1, 2026 · effective 2026-01-01.View

Binding = the payer's own policy. Proxy = a public, evidence-based clinical guideline the payer mirrors. Portal-only = the binding criteria are confirmed in the administrator's portal. Always confirm against the payer for the member's specific plan. Last verified 2026-08-07.

Frequently asked questions

Other UnitedHealthcare prior authorization requirements

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