S80.229D Blister (nonthermal), unspecified knee, subsequent encounterBillable ICD-10-CM code, FY2026.
Built from S80.229 with 7th character D (subsequent encounter).
M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")S80.222A Blister (nonthermal), left knee, initial encounterS80.222D Blister (nonthermal), left knee, subsequent encounterS80.222S Blister (nonthermal), left knee, sequelaS80.229 Blister (nonthermal), unspecified kneeS80.229A Blister (nonthermal), unspecified knee, initial encounterS80.229D Blister (nonthermal), unspecified knee, subsequent encounter (this code)S80.229S Blister (nonthermal), unspecified knee, sequelaS80.24 External constriction of kneeS80.241 External constriction, right kneeS80.241A External constriction, right knee, initial encounterS80.241D External constriction, right knee, subsequent encounter