Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
Internal Codes
  • S82.854C

    Nondisplaced trimalleolar fracture of right lower leg, initial encounter for open fracture type IIIA, IIIB, or IIIC

  • S82.854D

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for closed fracture with routine healing

  • S82.854E

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with routine healing

  • S82.854F

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

  • S82.854G

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for closed fracture with delayed healing

  • S82.854H

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with delayed healing

  • S82.854J

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing

  • S82.854K

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for closed fracture with nonunion

  • S82.854M

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with nonunion

  • S82.854N

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

  • S82.854P

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for closed fracture with malunion

  • S82.854Q

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type I or II with malunion

  • S82.854R

    Nondisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

  • S82.854S

    Nondisplaced trimalleolar fracture of right lower leg, sequela

  • S82.855

    Nondisplaced trimalleolar fracture of left lower leg

  • S82.855A

    Nondisplaced trimalleolar fracture of left lower leg, initial encounter for closed fracture

  • S82.855B

    Nondisplaced trimalleolar fracture of left lower leg, initial encounter for open fracture type I or II

  • S82.855C

    Nondisplaced trimalleolar fracture of left lower leg, initial encounter for open fracture type IIIA, IIIB, or IIIC

  • S82.855D

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with routine healing

  • S82.855E

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with routine healing

  • S82.855F

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

  • S82.855G

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with delayed healing

  • S82.855H

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with delayed healing

  • S82.855J

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing

  • S82.855K

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with nonunion

  • S82.855M

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with nonunion

  • S82.855N

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

  • S82.855P

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with malunion

  • S82.855Q

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with malunion

  • S82.855R

    Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

  • S82.855S

    Nondisplaced trimalleolar fracture of left lower leg, sequela

  • S82.856

    Nondisplaced trimalleolar fracture of unspecified lower leg

  • S82.856A

    Nondisplaced trimalleolar fracture of unspecified lower leg, initial encounter for closed fracture

  • S82.856B

    Nondisplaced trimalleolar fracture of unspecified lower leg, initial encounter for open fracture type I or II

  • S82.856C

    Nondisplaced trimalleolar fracture of unspecified lower leg, initial encounter for open fracture type IIIA, IIIB, or IIIC

  • S82.856D

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with routine healing

  • S82.856E

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with routine healing

  • S82.856F

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

  • S82.856G

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with delayed healing

  • S82.856H

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with delayed healing

  • S82.856J

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing

  • S82.856K

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with nonunion

  • S82.856M

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with nonunion

  • S82.856N

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

  • S82.856P

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for closed fracture with malunion

  • S82.856Q

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type I or II with malunion

  • S82.856R

    Nondisplaced trimalleolar fracture of unspecified lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

  • S82.856S

    Nondisplaced trimalleolar fracture of unspecified lower leg, sequela

  • S82.86

    Maisonneuve's fracture

  • S82.861

    Displaced Maisonneuve's fracture of right leg

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