S90.0 – Contusion of ankle
ICD-10-CM 2027 diagnosis code · Injuries to the ankle and foot
- Code
S90.0(claims format:S900)- Description
- Contusion of ankle
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S90-S99 Injuries to the ankle and foot
- Parent codes
- S90
Billable codes under S90.0
S90.0 is a header code and cannot be used on claims. Choose the most specific code:
- S90.00 – Contusion of unspecified ankleHeader (more codes below)
- S90.01 – Contusion of right ankleHeader (more codes below)
- S90.02 – Contusion of left ankleHeader (more codes below)
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).
| Character | Meaning |
|---|---|
A | initial encounter |
D | subsequent encounter |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S90 – Superficial injury of ankle, foot and toes
- The appropriate 7th character is to be added to each code from category S90
Block S90-S99
Index terms for S90.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in S90
- S90.1 – Contusion of toe without damage to nailHeader
- S90.2 – Contusion of toe with damage to nailHeader
- S90.3 – Contusion of footHeader
- S90.4 – Other superficial injuries of toeHeader
- S90.5 – Other superficial injuries of ankleHeader
- S90.8 – Other superficial injuries of footHeader
- S90.9 – Unspecified superficial injury of ankle, foot and toeHeader
Frequently asked questions
What is ICD-10 code S90.0?
S90.0 is the ICD-10-CM code for contusion of ankle, in the block S90-S99 (Injuries to the ankle and foot).
Is S90.0 a billable code?
No. S90.0 is a header code with more specific child codes; report one of the billable codes listed above.
What category does S90.0 belong to?
It belongs to category S90 – Superficial injury of ankle, foot and toes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.