Denied Arthroscopy Appeals: Reviewer Outcomes

Arthroscopic surgery of a joint — most often the knee or shoulder — billed with joint- and procedure-specific codes and gated behind conservative-care criteria.

What the independent reviewers decided

41%

overturned by the independent reviewer

of 74 decisions in the corpus

Source

California DMHC independent medical review determinations, 2017-2026. Public record.

Read this as a base rate, not as your odds

These are decisions about other patients, in one state, that had already been through the plan's own internal appeal and were then sent to an outside reviewer. That population is self-selected toward disputes worth pursuing, so the rate says what happened to cases like this at that stage — not what will happen to a specific claim. It is not medical or legal advice.

Why plans deny arthroscopy

The policy requires a documented conservative course and the record does not evidence it.
The procedure is characterised as not indicated for degenerative disease absent a mechanical symptom.
Imaging is read as showing degenerative change rather than the structural lesion the policy requires.
A mechanical symptom the policy requires — locking, catching, giving way — is not documented.

What actually carried the cases that won

Prior treatment led the reversals, but this group needs an honest caveat: the published evidence for arthroscopy in degenerative joint disease has moved against it, and plan policies followed. Standard of care appeared among the reviewers' authorities here more than elsewhere. The appeals that succeeded documented a mechanical symptom or a structural lesion, not degenerative change plus pain.

What the record showed	Share of overturned decisions
Prior treatment was documented	77%
Objective findings were documented	63%
Conservative treatment was documented as failed	50%
The condition was documented as chronic or long-standing	43%
A published guideline supported the request	40%
The severity or urgency was documented	37%
The functional impact on the patient was documented	33%
The diagnosis was confirmed	17%

Shares are of the overturned decisions and do not sum to 100% — a single decision often rested on more than one, and some rested on none of these.

What the reviewers cited

Peer-reviewed literature — in 47% of the overturned decisions
Standard of care — in 10% of the overturned decisions
Clinical guidelines — in 7% of the overturned decisions
Specialty-society criteria — in 3% of the overturned decisions

arthroscopy denials — frequently asked

Is a denied arthroscopy worth appealing?

Independent reviewers in California reversed 30 of the 74 arthroscopy disputes they decided. That minority reflects a policy landscape that has genuinely tightened as the evidence for arthroscopy in degenerative disease has weakened.

What distinguishes the appeals that worked?

A mechanical symptom or a structural finding, documented. Locking, catching, a documented meniscal or labral tear correlating with the examination — rather than degenerative change plus persistent pain.

Is the conservative course still the main gate?

Yes. It led the overturned decisions, and it is the item most often described rather than evidenced. Dates, modalities, durations and outcomes.

Source

California Department of Managed Health Care — independent medical review determinations

Denial reasons and criteria are described in plain language for reference and vary by plan and policy. This page reports what independent reviewers decided in a public California dataset; it is general information, not medical, legal, or coverage advice.

When the appeal has to be written, and cited

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