D4270Pedicle Soft Tissue Graft Procedure

What This Code Covers

D4270 covers a pedicle soft tissue graft procedure where gum tissue adjacent to a recession site is surgically repositioned (rotated or laterally moved) to cover an exposed root surface. Unlike free gingival grafts or connective tissue grafts that harvest tissue from a distant donor site (palate), a pedicle graft uses tissue that remains attached to its blood supply at one end, swinging it over to cover the neighboring area of recession. This code is billed per site.

Billing Guide

Bill this code when:

• A pedicle graft (laterally positioned flap, coronally advanced flap with pedicle) is performed
• Adjacent tissue is repositioned while maintaining its blood supply attachment
• The goal is to cover an exposed root surface or augment gum tissue
• The tissue is from the same surgical area, not a remote donor site

Do not bill this code when:

• A free soft tissue graft is harvested from the palate or other remote site. Use D4273 or D4274
• A connective tissue graft from a remote donor site is used. Use D4273
• An allograft (donor tissue from tissue bank) is used. Use D4275
• The tissue repositioning is part of a flap procedure for pocket reduction (included in D4240/D4260)

Insurance and Denial Prevention

Key Payer Rules:

• D4270 is billed per site (per tooth with recession)
• Coverage varies; some plans cover gum grafts when there is functional need (progressive recession, sensitivity, root caries risk)
• Many payers deny gum grafts performed solely for esthetic reasons
• Documentation of functional impairment or risk of continued recession strengthens the claim

Common Denials and How to Respond:

• Cosmetic procedure - Document the functional indication: progressive recession, root sensitivity, risk of root caries, or inadequate attached gingiva affecting oral hygiene.
• Not medically necessary - Submit measurements showing significant recession depth and clinical notes describing the functional impact.
• Wrong graft code - Clarify that adjacent tissue was repositioned (pedicle), not tissue from a remote donor site. Describe the specific technique.