Original Medicare denied outpatient therapy above the yearly threshold? What the rule says and how to appeal.
Checked against the current rules on September 23, 2026.
A denial for outpatient therapy above the yearly threshold isn't the end of the story — Original Medicare has to follow specific coverage rules, and a denial that doesn't square with those rules is exactly the kind of appeal that tends to win.
Here's what the rule actually requires, what evidence usually turns a denial around, and the deadline you're working against.
What the rule requires
Outpatient therapy above the yearly threshold denials like this one turn on your own specific facts and documentation, not a single cited rule — the questions and evidence below are what actually decide it.
Questions that decide it
Before you appeal, these are the facts that usually decide whether a denial like this holds up:
Does your therapist's documentation show why continued therapy above the threshold was medically necessary?
Does the plan of care show measurable functional goals and progress toward them, or an explanation of why progress has been slower than expected?
What a winning appeal has to show
An appeal that wins usually includes:
Therapy progress notes justifying continued treatment above the threshold — Above the yearly threshold, coverage requires the KX modifier plus documentation showing medical necessity for continued therapy — it is a review flag, not a hard cap. (Your doctor's office provides this.)
The therapist's current plan of care with its stated functional goals — A reviewer checking a claim above the threshold is looking for a documented plan showing the therapy is still working toward a specific functional outcome, not open-ended maintenance. (Your doctor's office provides this.)
Your deadline to appeal
120 days from the date on the Medicare Summary Notice — 120 calendar days from when you receive it (42 CFR § 405.942(a)), with receipt presumed to be 5 days after the notice's own date unless shown otherwise.42 CFR 405.942
Your Medicare contractor itself then has its own clock to decide. 60 calendar days from when the MAC receives your timely request. Each time you submit new evidence after filing, that 60-day clock is extended by up to 14 more calendar days for that submission (42 CFR § 405.950(a), (b)(3)) — this can happen more than once.
What to ask your doctor to address
If you're asking the treating physician for a supporting letter, it should speak to:
Why continued therapy above the yearly threshold remained medically necessary for this specific patient's functional goals.
Questions people ask
- Can your Medicare contractor just say it's "not medically necessary" with no further explanation?
- The denial notice has to explain the basis for the decision and tell you how to appeal. If it doesn't point to a specific rule or criteria, that's itself worth raising in your appeal — you're entitled to know what standard was applied.
- What if I don't have all the evidence listed above?
- Include what you have. An appeal with partial evidence and a clear explanation of the rule still gets a real review — it doesn't need to be complete to be worth filing.
Sources — last checked September 23, 2026
- 42 CFR 405.942as of September 23, 2026
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By CaseWhy Appeals editorial. See how this content is produced. Not legal advice. Not affiliated with or endorsed by Medicare, CMS, or any health plan. A product of CaseWhy LLC.
