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ICD-10-CM 2027 diagnosis code

S93.41Sprain of calcaneofibular ligament

Not billable — use a more specific codeRequires 7th character

S93.41 is a header code, so it can't be reported by itself. Choose one of the 3 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 S93.41

S93.41 is the ICD-10-CM diagnosis code for sprain of calcaneofibular ligament. It belongs to category S93 (dislocation and sprain of joints and ligaments at ankle, foot and toe level), block S90-S99 (injuries to the ankle and foot) 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 3 subcodes must be used instead.

Within S93.4 (sprain of ankle), S93.41 is specifically for sprain of calcaneofibular ligament. Related codes cover unspecified ligament of ankle (S93.40), deltoid ligament (S93.42), tibiofibular ligament (S93.43) and other ligament of ankle (S93.49).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

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 each code from category S93

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S93.41.

› From S93.4 Sprain of ankle
Excludes2
  • injury of Achilles tendon (S86.0-)
› From S93 Dislocation and sprain of joints and ligaments at ankle, foot and toe level
Includes
  • avulsion of joint or ligament of ankle, foot and toe
  • laceration of cartilage, joint or ligament of ankle, foot and toe
  • sprain of cartilage, joint or ligament of ankle, foot and toe
  • traumatic hemarthrosis of joint or ligament of ankle, foot and toe
  • traumatic rupture of joint or ligament of ankle, foot and toe
  • traumatic subluxation of joint or ligament of ankle, foot and toe
  • traumatic tear of joint or ligament of ankle, foot and toe
Excludes2
  • strain of muscle and tendon of ankle and foot (S96.-)
Code also
  • any associated open wound

Broader instructions also apply from S90-S99 Injuries to the ankle and foot and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S93.41.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S93.41

Is S93.41 billable?

No. S93.41 is a header code. Report one of its more specific subcodes instead.