S86.0 – Injury of Achilles tendon
ICD-10-CM 2027 diagnosis code · Injuries to the knee and lower leg
- Code
S86.0(claims format:S860)- Description
- Injury of Achilles tendon
- 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
- S80-S89 Injuries to the knee and lower leg
- Parent codes
- S86
Billable codes under S86.0
S86.0 is a header code and cannot be used on claims. Choose the most specific code:
- S86.00 – Unspecified injury of Achilles tendonHeader (more codes below)
- S86.01 – Strain of Achilles tendonHeader (more codes below)
- S86.02 – Laceration of Achilles tendonHeader (more codes below)
- S86.09 – Other specified injury of Achilles tendonHeader (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.
S86 – Injury of muscle, fascia and tendon at lower leg level
- any associated open wound (S81.-)
- The appropriate 7th character is to be added to each code from category S86
Block S80-S89
Related codes in S86
- S86.1 – Injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelHeader
- S86.2 – Injury of muscle(s) and tendon(s) of anterior muscle group at lower leg levelHeader
- S86.3 – Injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelHeader
- S86.8 – Injury of other muscles and tendons at lower leg levelHeader
- S86.9 – Injury of unspecified muscle and tendon at lower leg levelHeader
Frequently asked questions
What is ICD-10 code S86.0?
S86.0 is the ICD-10-CM code for injury of Achilles tendon, in the block S80-S89 (Injuries to the knee and lower leg).
Is S86.0 a billable code?
No. S86.0 is a header code with more specific child codes; report one of the billable codes listed above.
What category does S86.0 belong to?
It belongs to category S86 – Injury of muscle, fascia and tendon at lower leg level.
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.