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
  • S52.616S

    Nondisplaced fracture of unspecified ulna styloid process, sequela

  • S52.62

    Torus fracture of lower end of ulna

  • S52.621

    Torus fracture of lower end of right ulna

  • S52.621A

    Torus fracture of lower end of right ulna, initial encounter for closed fracture

  • S52.621D

    Torus fracture of lower end of right ulna, subsequent encounter for fracture with routine healing

  • S52.621G

    Torus fracture of lower end of right ulna, subsequent encounter for fracture with delayed healing

  • S52.621K

    Torus fracture of lower end of right ulna, subsequent encounter for fracture with nonunion

  • S52.621P

    Torus fracture of lower end of right ulna, subsequent encounter for fracture with malunion

  • S52.621S

    Torus fracture of lower end of right ulna, sequela

  • S52.622

    Torus fracture of lower end of left ulna

  • S52.622A

    Torus fracture of lower end of left ulna, initial encounter for closed fracture

  • S52.622D

    Torus fracture of lower end of left ulna, subsequent encounter for fracture with routine healing

  • S52.622G

    Torus fracture of lower end of left ulna, subsequent encounter for fracture with delayed healing

  • S52.622K

    Torus fracture of lower end of left ulna, subsequent encounter for fracture with nonunion

  • S52.622P

    Torus fracture of lower end of left ulna, subsequent encounter for fracture with malunion

  • S52.622S

    Torus fracture of lower end of left ulna, sequela

  • S52.629

    Torus fracture of lower end of unspecified ulna

  • S52.629A

    Torus fracture of lower end of unspecified ulna, initial encounter for closed fracture

  • S52.629D

    Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with routine healing

  • S52.629G

    Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with delayed healing

  • S52.629K

    Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with nonunion

  • S52.629P

    Torus fracture of lower end of unspecified ulna, subsequent encounter for fracture with malunion

  • S52.629S

    Torus fracture of lower end of unspecified ulna, sequela

  • S52.69

    Other fracture of lower end of ulna

  • S52.691

    Other fracture of lower end of right ulna

  • S52.691A

    Other fracture of lower end of right ulna, initial encounter for closed fracture

  • S52.691B

    Other fracture of lower end of right ulna, initial encounter for open fracture type I or II

  • S52.691C

    Other fracture of lower end of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

  • S52.691D

    Other fracture of lower end of right ulna, subsequent encounter for closed fracture with routine healing

  • S52.691E

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type I or II with routine healing

  • S52.691F

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

  • S52.691G

    Other fracture of lower end of right ulna, subsequent encounter for closed fracture with delayed healing

  • S52.691H

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type I or II with delayed healing

  • S52.691J

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing

  • S52.691K

    Other fracture of lower end of right ulna, subsequent encounter for closed fracture with nonunion

  • S52.691M

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type I or II with nonunion

  • S52.691N

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

  • S52.691P

    Other fracture of lower end of right ulna, subsequent encounter for closed fracture with malunion

  • S52.691Q

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type I or II with malunion

  • S52.691R

    Other fracture of lower end of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

  • S52.691S

    Other fracture of lower end of right ulna, sequela

  • S52.692

    Other fracture of lower end of left ulna

  • S52.692A

    Other fracture of lower end of left ulna, initial encounter for closed fracture

  • S52.692B

    Other fracture of lower end of left ulna, initial encounter for open fracture type I or II

  • S52.692C

    Other fracture of lower end of left ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

  • S52.692D

    Other fracture of lower end of left ulna, subsequent encounter for closed fracture with routine healing

  • S52.692E

    Other fracture of lower end of left ulna, subsequent encounter for open fracture type I or II with routine healing

  • S52.692F

    Other fracture of lower end of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

  • S52.692G

    Other fracture of lower end of left ulna, subsequent encounter for closed fracture with delayed healing

  • S52.692H

    Other fracture of lower end of left ulna, subsequent encounter for open fracture type I or II with delayed healing

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