ICD-10-CM 2027 diagnosis code
S82.4Fracture of shaft of fibula
S82.4 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S82.4
S82.4 is the ICD-10-CM diagnosis code for fracture of shaft of fibula. It belongs to category S82 (fracture of lower leg, including ankle), block S80-S89 (injuries to the knee and lower leg) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.
Within S82 (fracture of lower leg, including ankle), S82.4 is specifically for fracture of shaft of fibula. Related codes cover fracture of patella (S82.0), fracture of upper end of tibia (S82.1), fracture of shaft of tibia (S82.2), fracture of lower end of tibia (S82.3), fracture of medial malleolus (S82.5), fracture of lateral malleolus (S82.6), other fractures of lower leg (S82.8) and unspecified fracture of lower leg (S82.9).
Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture type I or II, C for initial encounter for open fracture type IIIA, IIIB, or IIIC, D for subsequent encounter for closed fracture with routine healing, E for subsequent encounter for open fracture type I or II with routine healing, F for subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing and 10 more. Use placeholder "X" characters to fill any empty positions before the 7th character.
The conditions in its Excludes2 note aren't part of S82.4, but may be coded alongside it if the patient has both: fracture of lateral malleolus alone (S82.6-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to all codes from category S82
- S82.40Unspecified fracture of shaft of fibula
- S82.42Transverse fracture of shaft of fibula
- S82.421Displaced transverse fracture of shaft of right fibula
- S82.422Displaced transverse fracture of shaft of left fibula
- S82.423Displaced transverse fracture of shaft of unspecified fibula
- S82.424Nondisplaced transverse fracture of shaft of right fibula
- S82.425Nondisplaced transverse fracture of shaft of left fibula
- S82.426Nondisplaced transverse fracture of shaft of unspecified fibula
- S82.43Oblique fracture of shaft of fibula
- S82.431Displaced oblique fracture of shaft of right fibula
- S82.432Displaced oblique fracture of shaft of left fibula
- S82.433Displaced oblique fracture of shaft of unspecified fibula
- S82.434Nondisplaced oblique fracture of shaft of right fibula
- S82.435Nondisplaced oblique fracture of shaft of left fibula
- S82.436Nondisplaced oblique fracture of shaft of unspecified fibula
- S82.44Spiral fracture of shaft of fibula
- S82.441Displaced spiral fracture of shaft of right fibula
- S82.442Displaced spiral fracture of shaft of left fibula
- S82.443Displaced spiral fracture of shaft of unspecified fibula
- S82.444Nondisplaced spiral fracture of shaft of right fibula
- S82.445Nondisplaced spiral fracture of shaft of left fibula
- S82.446Nondisplaced spiral fracture of shaft of unspecified fibula
- S82.45Comminuted fracture of shaft of fibula
- S82.451Displaced comminuted fracture of shaft of right fibula
- S82.452Displaced comminuted fracture of shaft of left fibula
- S82.453Displaced comminuted fracture of shaft of unspecified fibula
- S82.454Nondisplaced comminuted fracture of shaft of right fibula
- S82.455Nondisplaced comminuted fracture of shaft of left fibula
- S82.456Nondisplaced comminuted fracture of shaft of unspecified fibula
- S82.46Segmental fracture of shaft of fibula
- S82.461Displaced segmental fracture of shaft of right fibula
- S82.462Displaced segmental fracture of shaft of left fibula
- S82.463Displaced segmental fracture of shaft of unspecified fibula
- S82.464Nondisplaced segmental fracture of shaft of right fibula
- S82.465Nondisplaced segmental fracture of shaft of left fibula
- S82.466Nondisplaced segmental fracture of shaft of unspecified fibula
- S82.49Other fracture of shaft of fibula
- Ainitial encounter for closed fracture
- Binitial encounter for open fracture type I or II
- Cinitial encounter for open fracture type IIIA, IIIB, or IIIC
- Dsubsequent encounter for closed fracture with routine healing
- Esubsequent encounter for open fracture type I or II with routine healing
- Fsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- Gsubsequent encounter for closed fracture with delayed healing
- Hsubsequent encounter for open fracture type I or II with delayed healing
- Jsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
- Ksubsequent encounter for closed fracture with nonunion
- Msubsequent encounter for open fracture type I or II with nonunion
- Nsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
- Psubsequent encounter for closed fracture with malunion
- Qsubsequent encounter for open fracture type I or II with malunion
- Rsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
- Ssequela
Coding notes
- fracture of lateral malleolus alone (S82.6-)
Notes that apply from higher levels
Instructions written at a parent level also apply to S82.4.
› From S82 Fracture of lower leg, including ankle
- 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
- fracture of malleolus
- traumatic amputation of lower leg (S88.-)
Broader instructions also apply from S80-S89 Injuries to the knee and lower leg and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S82.4
Is S82.4 billable?
- No. S82.4 is a header code. Report one of its more specific subcodes instead.