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R529
R529 – Mandibular osteotomies for retrognathia, any technique - advancement - 10 to 20 mm, inclusive
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
A surgical service involving a mandibular osteotomy for the correction of retrognathia. The procedure specifically covers an advancement of the mandible measuring between 10 mm and 20 mm, inclusive. This service is classified under Orthognathic Surgery. The add-on code E588A may be claimed in addition for cases of apertognathia or laterognathia.
When to Use
- Use R529 specifically for mandibular advancement procedures where the measured surgical movement is between 10 mm and 20 mm inclusive.
- Use this code for orthognathic correction of retrognathia; if the patient also presents with apertognathia or laterognathia, you must append E588A to the claim.
Common Pitfalls
- Do not bill R529 for advancements outside the 10-20 mm range, as this will lead to rejection or audit adjustment for incorrect code selection.
- Do not attempt to bill for a second surgical assistant without prior written authorization from a medical consultant, as R529 is not on the pre-approved list for multiple assistants.
Billing Tips
- Ensure your operative report explicitly documents the measured advancement in millimeters to justify the use of R529 over other mandibular osteotomy codes.
- If performing the procedure for apertognathia or laterognathia, always include the E588A add-on code on the same claim to capture the additional $256.40 flat fee.
Provider Fee$1,058.40
Surgical Assistant Fee$75.06
Anaesthetist Fee$232.35
Non-Anaesthetist Fee$232.35
Effective: April 1, 2025
Category
N. Musculoskeletal System Surgical Procedures
Subcategory
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Service Type
Surgical
Code Classes
Musculoskeletal System Surgical Procedures
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