CPT 27446 · Arthroplasty — Knee · Aetna
Partial Knee Arthroplasty (Unicompartmental) at Aetna.
How Aetna approaches CPT 27446 (Partial Knee Arthroplasty (Unicompartmental)) for prior-authorization review: at last review on 2025-10-01, the policy covers this code with prior authorization required.
Free with practitioner sign-in — magic-link email auth, no credit card.
Coverage
Covered
Prior auth
Prior auth required
Last reviewed
2025-10-01
Policy number
CPB-ORTHO-27446Criteria summary
High-level themes from the Aetna policy of record for CPT 27446. Verbatim policy text and per-criterion analysis are available after sign-in.
- At least 12 weeks of conservative care typically required.
- Imaging concordance documentation required.
See the full Aetna criteria.
Sign in for verbatim conservative-care language, exact imaging-concordance rules, repeat-procedure thresholds, and the denial-risk score for any specific clinical scenario.
Sign in — free for practitioners →