2025 CPT code 29999

Unlisted procedure, arthroscopy.

It is important to always check for existing CPT codes before using this unlisted code. When using this code, it is crucial to provide clear documentation of the procedure performed.

Modifiers can be applied to further specify the circumstances of the procedure.Commonly used modifiers include 22 (Increased Procedural Services), 50 (Bilateral Procedure), 51 (Multiple Procedures), 59 (Distinct Procedural Service), and other relevant modifiers.

Medical necessity for this code must be carefully documented, especially since it is an unlisted code.Documentation should clearly explain why a more specific code could not be used and support the clinical rationale for the procedure. The documentation should establish the diagnosis, the symptoms and signs necessitating the procedure, and how it will address the patient’s condition.

The physician performs an arthroscopic procedure on the musculoskeletal system not described by other CPT codes.

IMPORTANT Use this code only when a more specific arthroscopy code is not available. Always check for more specific CPT codes before using this unlisted code.

In simple words: This code is used for arthroscopy procedures on the musculoskeletal system when there isn't a specific code for what was done. The doctor will need to provide extra information to explain the procedure.

This code is used to report an arthroscopic procedure on the musculoskeletal system that does not have a dedicated CPT code.It is essential to submit supporting documentation with the claim to clarify the specific procedure performed.

Example 1: A patient presents with an unusual intra-articular lesion in the wrist that requires arthroscopic removal. As there is no specific code for arthroscopic removal of this type of lesion in the wrist, 29999 is reported., A new arthroscopic technique is developed for repairing a specific ligament in the ankle.Until a dedicated code is established, 29999 would be reported along with detailed documentation of the procedure., A surgeon performs an arthroscopic procedure on the hip for a rare condition not covered by existing codes.29999 is reported with comprehensive documentation to support the medical necessity of the unique procedure.

The operative report must describe the procedure, including the approach, instruments used, tissues visualized and treated, and any complications. Supporting documentation such as pre- and post-operative diagnoses and imaging studies may also be required.

** When billing with 29999, submit supporting documentation to justify its usage and the fee requested. A special report describing the procedure, similar procedures and their respective codes, and the time, effort, and equipment required can help in justifying the charges.

  • Revenue Code: P5B - AMBULATORY PROCEDURES - MUSCULOSKELETAL
  • Payment Status: Active
  • Modifier TC rule: The applicability of a TC modifier will depend on the nature of the procedure performed.
  • Fee Schedule : The fee schedule for this code is determined by individual payers and is subject to change.
  • Specialties:Orthopedic Surgery, Sports Medicine, and other specialties performing arthroscopic procedures.
  • Place of Service:Ambulatory Surgical Center, Hospital Outpatient Department, Physician's Office.
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