Optum Total Knee Arthroplasty prior authorization requirements (2026)
What Optum generally requires to approve Total Knee Arthroplasty (CPT 27447), for Commercial plans. Yes. Optum generally requires prior authorization for Total Knee Arthroplasty (CPT 27447).
Medical-necessity criteria Optum generally applies
(1) K-L Grade 3–4 OA on weight-bearing X-rays or equivalent disabling pathology; (2) Conservative care failure ≥3 months: supervised PT (≥6 sessions with progress notes), NSAIDs, ≥1 corticosteroid injection; (3) KOOS or WOMAC severe range or VAS ≥7/10; (4) BMI documented; (5) Optum uses digital clinical decision tools — online PA submission preferred with structured data entry; real-time decisions available for straightforward cases
Diagnoses that commonly support medical necessity
ICD-10-CM diagnoses frequently associated with medical necessity for Total Knee Arthroplasty. Confirm the covered diagnosis list against the current Optum policy.
Commonly required documentation
- Weight-bearing X-rays
- PT records with session count and progress notes
- KOOS or WOMAC
- injection records
- BMI
- surgeon evaluation
How to submit
- Portal: Optum ProviderConnect / Availity
- Typical turnaround: about 2 days
Source
Optum offers real-time PA decisions for well-documented cases through ProviderConnect portal. Incomplete submissions cause manual review delays. Online structured submission preferred over fax.
Frequently asked questions
Does Optum require prior authorization for Total Knee Arthroplasty?
Yes. Optum generally requires prior authorization for Total Knee Arthroplasty (CPT 27447).
What does Optum require to approve Total Knee Arthroplasty?
(1) K-L Grade 3–4 OA on weight-bearing X-rays or equivalent disabling pathology; (2) Conservative care failure ≥3 months: supervised PT (≥6 sessions with progress notes), NSAIDs, ≥1 corticosteroid injection; (3) KOOS or WOMAC severe range or VAS ≥7/10; (4) BMI documented; (5) Optum uses digital clinical decision tools — online PA submission preferred with structured data entry; real-time decisions… Always confirm against the current Optum policy.
How long does a Optum prior authorization take?
Optum typically decides Total Knee Arthroplasty requests in about 2 days. Timeframes vary; check the payer portal.
Submitting Total Knee Arthroplasty to Optum?
Praxigen checks your clinical note against these criteria before you submit and drafts a policy-cited appeal if it is denied. You review and submit; nothing is sent automatically.