Intradiscal Steroid Injections for Pain Management
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This policy governs coverage and medical necessity determination for intradiscal glucocorticoid (steroid) injections for pain management for members of Arizona Complete Health (Centene-affiliated health plans). It states the plan's stance on coverage based on available evidence.
No material clinical or coverage changes in this revision.
Coverage Determination
Medical necessity determination
Covered when ALL of the following are met
No criteria make this a covered intervention; the overall stance is noncoverage.
It is the policy of Arizona Complete Health that intradiscal steroid injections are considered not medically necessary. This determination is based on the plan’s assessment that the effectiveness has not been established and the published literature reports both positive and negative results, leaving insufficient evidence to support routine coverage.
Effectiveness of intradiscal glucocorticoid injections for discogenic low back pain has not been established. The literature is limited and conflicting, with randomized trials showing mixed results (some short‑term benefit in selected trials but no consistent long‑term advantage), and guideline bodies recommending against the procedure for presumed discogenic pain.
Coding / Billing
| 22899 | Unlisted procedure, spine |
CPT coding guidance — use CPT 22899 for unlisted spine procedures
Providers should reference current CPT coding guidance when submitting claims; CPT code 22899 (Unlisted procedure, spine) is referenced for informational purposes.
- CPT is a registered trademark of the American Medical Association and codes/descriptions are from current manuals.
- Codes included are informational and inclusion/exclusion does not guarantee coverage.
What Providers Should Do
Prior authorization: intradiscal steroid injections are not medically necessary
Intradiscal steroid injections are considered not medically necessary because effectiveness has not been established; prior authorization requests for these procedures would be subject to denial under the plan's medical necessity criteria.
- CPT 22899 is referenced in coding implications for informational purposes.
Step therapy: none specified
No step therapy or conservative sequencing is specified in this policy; the document does not require prior conservative treatment steps because the procedure is deemed not medically necessary regardless.
Denial risk: procedure considered not medically necessary
Requests for intradiscal steroid injections are subject to denial because the procedure is considered not medically necessary due to insufficient and conflicting evidence of effectiveness.
- The policy states effectiveness has not been established and literature shows mixed results.
- Potential harms cited include discitis, progression of disc degeneration, and disc calcification.
Clinical Background
Intradiscal glucocorticoid injections deliver steroids directly into an intervertebral disc suspected to be the pain source. Available clinical trials are limited and conflicting: two trials found no difference between intradiscal steroid and control injections in patients with MRI evidence of degenerative disc disease and positive discography; another trial showed benefit only in a subgroup with inflammatory endplate changes but had poorly defined outcomes and reporting. A separate randomized trial found improvement at one month that did not persist at 12 months. Potential harms discussed in the literature include discitis, progression of disc degeneration, and disc calcification.
Definitions
Conservative Therapy Requirements
Frequency / Limits
Imaging Requirements
Imaging: informational only — MRI/discography referenced in trials
Imaging findings are described in the evidence (MRI evidence of degenerative disc disease; some trials used discography), but the policy does not mandate imaging criteria for coverage because intradiscal steroid injections are not covered.
- Trials referenced included patients with MRI evidence of degenerative disc disease and use of discography in some studies.
- Because the procedure is considered not medically necessary, imaging is informational and not a coverage requirement.
Services Not Covered
Intradiscal steroid injections for discogenic low back pain are not covered / not medically necessary because effectiveness has not been established and the published literature is limited and conflicting. Requests for these procedures are subject to denial under the plan’s medical necessity criteria.
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