S93.439
⚠ Non-billable
Sprain of tibiofibular ligament of unspecified ankle
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
S93.439
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code S93.439?
ICD-10-CM code S93.439 represents Sprain of tibiofibular ligament of unspecified ankle. It is a non-billable header code requiring a more specific subcategory in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is S93.439 billable?
No. S93.439 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is S93.439 in?
S93.439 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the S93 category
S93
Dislocation and sprain of joints and ligaments at ankle, foot and toe level
Non-billable
S93.0
Subluxation and dislocation of ankle joint
Non-billable
S93.1
Subluxation and dislocation of toe
Non-billable
S93.3
Subluxation and dislocation of foot
Non-billable
S93.4
Sprain of ankle
Non-billable
S93.5
Sprain of toe
Non-billable
S93.6
Sprain of foot
Non-billable
S93.01
Subluxation of right ankle joint
Non-billable
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