Effective March 1, 2026, UnitedHealthcare Kentucky (CS340KY.10) now links medical necessity determinations for ankle surgery directly to InterQual® CP: Procedures modules for Arthrodesis (talotibial), Arthroscopy (surgical), Arthrotomy, and Total Joint Replacement (ankle). The policy no longer lists standalone clinical criteria in the text; reviewers must use the specified InterQual® procedural modules to authorize and review the listed ankle procedures. Applicable CPT codes are organized under the four procedure headings to align coding with the InterQual® modules. This update applies to Kentucky members and makes InterQual® the operative standard for evaluating these ankle surgeries.
March 1, 2026 Revision: InterQual® Criteria Integration
The March 1, 2026 revision (Effective Date: 2026-03-01) for UnitedHealthcare Kentucky (CS340KY.10) consolidates the coverage rationale and explicitly ties medical necessity for ankle procedures to specified InterQual® CP procedural modules. The policy now directs reviewers and readers to the InterQual® CP: Procedures criteria for medical necessity determinations for the following specific procedures: Arthrodesis, Ankle (Talotibial Joint), Arthroscopy, Surgical, Ankle, Arthrotomy, Ankle, and Total Joint Replacement (TJR), Ankle.
This revision emphasizes reliance on InterQual® clinical coverage criteria rather than listing detailed narrative medical necessity criteria within the policy text itself. The policy text states that surgery of the ankle "is proven and medically necessary in certain circumstances" and then instructs to refer to the InterQual® modules for the clinical coverage criteria that govern authorization and review decisions.
Scope of Covered Ankle Procedures and Reliance on InterQual®
The policy affirms coverage for multiple types of ankle surgery under defined circumstances and identifies the major procedure categories within the scope: Arthrodesis, Ankle (Talotibial Joint), Arthroscopy, Surgical, Ankle, Arthrotomy, Ankle, and Total Joint Replacement (TJR), Ankle. The coverage rationale explicitly states that these surgeries are "proven and medically necessary in certain circumstances" and that InterQual® CP procedural criteria should be used to determine medical necessity.
No standalone clinical indications are enumerated in the policy text; instead, clinical coverage decisions are delegated to the referenced InterQual® modules. This structure makes the InterQual® criteria the operative standard for evaluating the listed ankle procedures under UnitedHealthcare Kentucky.
Applicable CPT Codes and Procedure Groupings
The policy lists the applicable CPT codes associated with the covered ankle procedures. Codes cited include arthrodesis and arthroplasty codes such as 27702 (arthroplasty, ankle; with implant — total ankle) and multiple arthroscopy codes including 29891, 29892, 29894–29899 covering excision of osteochondral defects, arthroscopically aided repairs, removal of loose bodies, synovectomy, limited and extensive debridement, and arthroscopy with ankle arthrodesis. Additional codes referenced include 27685 (lengthening or shortening of tendon; single tendon) and 28446 (open osteochondral autograft, talus).
The policy groups these codes under three procedure headings (Arthrotomy, Ankle; Total Joint Replacement (TJR), Ankle; Arthroscopy, Surgical, Ankle; Arthrodesis, Ankle (Talotibial Joint)) to align coding with the InterQual® procedural modules used for clinical coverage determinations.
State Applicability and Administrative Context for `CS340KY.10`
This policy document is designated for Kentucky only and is identified as CS340KY.10. It includes administrative sections such as medical records documentation used for reviews, U.S. Food and Drug Administration references, and a policy history/revision information section, though detailed content for those sections is not reproduced in the policy excerpt provided. The policy is arranged to direct users to external InterQual® criteria rather than reproducing detailed internal clinical guidelines.
By specifying the local designation (KY) in the policy number, UnitedHealthcare signals state-specific applicability; the effective date and the InterQual® linkage are the primary operative features for how ankle surgery coverage will be evaluated for members under this Kentucky policy.
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