R201 – Sequestrectomy
OHIP Radiology Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
Sequestrectomy is an incision and drainage procedure for the foot and ankle, involving the surgical removal of a sequestrum. This service is eligible for surgeon, assistant, and anaesthesia fees. As a surgical procedure, it encompasses the specific elements of surgery as defined in the General Preamble, including pre-operative evaluation and post-operative care.
When to Use
- Use R201 for the surgical removal of a sequestrum from the foot or ankle when the procedure is limited to the sequestrectomy itself.
- Select R201 when performing an incision and drainage specifically to extract a sequestrum, as opposed to a general debridement or incision and drainage of an abscess (e.g., R503).
Common Pitfalls
- Billing R201 in conjunction with other foot/ankle surgical procedures may trigger payment adjustment rules; ensure the major procedure is identified correctly to avoid rejection.
- Submitting R201 without clear operative documentation of the sequestrum removal will lead to audit recovery, as the code specifically requires the removal of a sequestrum, not just necrotic tissue.
Billing Tips
- Ensure the operative report explicitly describes the identification and removal of the sequestrum to distinguish the service from standard debridement codes like R220 or Z226.
Effective: April 1, 2026
N. Musculoskeletal System Surgical Procedures
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
All insured services must be documented in appropriate records that establish: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
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