R073 – Rotations, transpositions, Z-plasties - other areas - Defect 5.1 to 10 cm average diameter
OHIP Radiology Code — INTEGUMENTARY SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
A skin flap procedure involving rotation, transposition, or Z-plasty for a defect with an average diameter between 5.1 and 10 cm. This code applies to areas of the body other than the face, neck, or scalp. Note: The procedure includes undermining, and its application depends on the specific site and size of the defect as per . Anaesthesia base units: 7 Assistant base units: 6
When to Use
- Use for rotation or transposition flaps on the trunk or extremities where the defect size is between 5.1 and 10 cm.
- Use when performing a Z-plasty for scar revision or contracture release on the body where the average diameter of the resulting defect falls within the 5.1 to 10 cm range.
Common Pitfalls
- Billing R073 for facial or scalp defects, which are specifically excluded; these must be billed under the appropriate R045-R047 series.
- Incorrectly measuring the defect size; ensure the average diameter is calculated based on the defect created by the excision, not the final flap size, to avoid audit triggers.
- Attempting to bill for primary closure (S-codes) in addition to R073; the flap procedure code is comprehensive and includes the necessary undermining and closure.
Billing Tips
- If performing an excision for a tumour with frozen section confirmation prior to the flap, ensure you append E540 to R073 to receive the 25% premium.
- Always document the specific dimensions of the defect in the operative report to justify the 5.1 to 10 cm size category if audited.
Effective: April 1, 2025
M. Integumentary System Surgical Procedures
INTEGUMENTARY SYSTEM SURGICAL PROCEDURES
Surgical
Integumentary System Surgical Procedures
Includes undermining but will depend on the site and size.
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