Tuesday, October 6, 2026

Stubbed your big toe months ago and it is still giving you trouble? Code S93.133S represents a sequela, or late effect, of a subluxation of the interphalangeal joint of an unspecified great toe. This means the acute injury has healed, but a chronic complication like joint instability or arthritis remains. Accurate coding requires proper sequencing, placing the chronic condition first followed by this sequela code. Understanding the 7th character 'S' is vital for avoiding billing denials on long-term physical therapy or orthopedic claims.