S86.10 – Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level

Code

S86.10 (claims format: S8610)

Description

Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level

Short description

Unsp injury of musc/tend posterior grp at lower leg level

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 › S86.1

Billable codes under S86.10

S86.10 is a header code and cannot be used on claims. Choose the most specific code:

• S86.101 – Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right legHeader (more codes below)
• S86.102 – Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, left legHeader (more codes below)
• S86.109 – Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified legHeader (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).

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

Block S80-S89

Index terms for S86.10

Entries in the ICD-10-CM alphabetic index that lead to this code:

• Injury, muscle, posterior muscle, leg level

Related codes in S86.1

• S86.11 – Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelHeader
• S86.12 – Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelHeader
• S86.19 – Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelHeader