TENS Unit denials: 22.7% overturned by independent reviewers
In 22 California IMR decisions from 2002 to 2025, reviewers overturned the plan 5 times (22.7%). In the last five years: 60.0% of 5. Denials reach IMR only when a member appeals all the way; read the caveats below before generalising.
By diagnosis
| Diagnosis category | Decisions | Overturned | Last 5 years |
|---|---|---|---|
| Orth/Musculoskeletal | 12 | 16.7% | 33.3% of 3 |
| CNS/ Neuromusc Dis | 5 | 20.0% | — |
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2024 | 4 | 50.0% |
| 2025 | 1 | 100.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 9 | 22.2% | 22.7% |
| Prior therapies failedThe findings mention treatments that were tried without adequate response. | 4 | 50.0% | 22.7% |
Keyword matches on the reviewer’s findings, not causes. A tag that appears mostly in overturned decisions is worth documenting in an appeal; it is not a guarantee.
From recent overturned decisions
“Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for a transcutaneous electrical nerve stimulation (TENS) device. In this case, the patient has been diagnosed with systemic lupus erythematosus and is experiencing chronic pain in his neck, lower back, and legs. The record establishes that the patient has utilized physical, chiropractic, and pharmacological therapy without complete remission …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient has a history of lumbosacral radiculopathy, muscle spasms, myofascial pain, and nerve pain. The patient requested authorization and coverage for a transcutaneous electrical nerve stimulation (TENS) unit. In this case, the patient has a history of lumbar radiculopathy causing low back pain (LBP) and muscle spasms. Further, the …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for a transcutaneous electrical nerve stimulation (TENS) unit. The American Physical Therapy Association defines TENS as a noninvasive and safe application of electrical stimulation to the skin for pain control. One group of authors performed a systematic review of several recent randomized controlled …”
- California only: these are decisions by independent reviewers under California's IMR program (plans regulated by the Department of Managed Health Care). Other states and self-funded employer plans use different reviewers and rules.
- Selection: only denials that a member took all the way to IMR appear. Most denials are never appealed, and the ones that reach an external reviewer are not a random sample.
- Overturned means the reviewer disagreed with the plan; it does not mean the treatment worked or that a similar request will be approved.
- Argument tags are keyword matches on the reviewer's findings. They describe what the findings mention, not why the case was decided.
- Categories are DMHC's own labels (treatment sub-category and diagnosis category); 'Other' is a catch-all and is excluded from rankings.
Source: California Department of Managed Health Care, Independent Medical Review (IMR) Determinations, Trend (CHHS Open Data). Public California government data; Apellica's aggregates and tags are CC BY 4.0.
Questions
How often were TENS Unit denials overturned?
In 22 California IMR decisions from 2002 to 2025, reviewers overturned the plan 5 times (22.7%). In the last five years: 60.0% of 5.
What did the reviewers' findings mention in overturned cases?
The table on this page counts keyword matches in the findings: prior therapies tried, contraindications, guidelines cited, published evidence, whether the records supported the request. They describe what the findings say, not why the case was decided.
Does a California IMR result apply to my plan?
Only California plans regulated by the Department of Managed Health Care go to IMR. Other states and self-funded employer plans use different reviewers, but the reasoning is the same kind: criteria, documentation and alternatives. Use the findings as a guide to what to document.
Related: California appeal rights · California external-review reversal rate · The levers library · CSV
Independent reviewers reverse plans when the record answers the criteria. Upload the denial letter; a senior reviewer reads it within 24 hours and tells you in writing whether it can be appealed and how. $0 upfront, 10% of what is recovered, nothing if we do not recover. Not a law firm.