Coding and coverage · ICD-10-CM

S82

S82.4 Fracture of shaft of fibula

Not billable (header)Chapter 19

This code needs a 7th character (use X as a placeholder for missing characters).

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Codes under this one

  • S82.40 Unspecified fracture of shaft of fibulaHeader
  • S82.42 Transverse fracture of shaft of fibulaHeader
  • S82.43 Oblique fracture of shaft of fibulaHeader
  • S82.44 Spiral fracture of shaft of fibulaHeader
  • S82.45 Comminuted fracture of shaft of fibulaHeader
  • S82.46 Segmental fracture of shaft of fibulaHeader
  • S82.49 Other fracture of shaft of fibulaHeader

Instructional notes

Chapter 19

Excludes2Not included here: the patient may have both; report both when both are present.
Use additional codeAdd a second code for the full picture.
  • code to identify any retained foreign body, if applicable (Z18.-)
Notes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Section S80-S89

Excludes2Not included here: the patient may have both; report both when both are present.
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
  • insect bite or sting, venomous (T63.4)

S82

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • traumatic amputation of lower leg (S88.-)
Excludes2Not included here: the patient may have both; report both when both are present.
  • fracture of foot, except ankle (S92.-)
  • periprosthetic fracture around internal prosthetic ankle joint (M97.2)
  • periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)
Includes
  • fracture of malleolus
Notes
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
  • The open fracture designations are based on the Gustilo open fracture classification
7th charactersThe appropriate 7th character is to be added to all codes from category S82
  • A initial encounter for closed fracture
  • B initial encounter for open fracture type I or II
  • C initial encounter for open fracture type IIIA, IIIB, or IIIC
  • D subsequent encounter for closed fracture with routine healing
  • E subsequent encounter for open fracture type I or II with routine healing
  • F subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
  • G subsequent encounter for closed fracture with delayed healing
  • H subsequent encounter for open fracture type I or II with delayed healing
  • J subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
  • K subsequent encounter for closed fracture with nonunion
  • M subsequent encounter for open fracture type I or II with nonunion
  • N subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
  • P subsequent encounter for closed fracture with malunion
  • Q subsequent encounter for open fracture type I or II with malunion
  • R subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
  • S sequela

This code

Excludes2Not included here: the patient may have both; report both when both are present.
  • fracture of lateral malleolus alone (S82.6-)

Chapter 19: Injury, poisoning and certain other consequences of external causes · S80-S89 Injuries to the knee and lower leg (S80-S89)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.