S86

⚠ Non-billable (Header)

Injury of muscle, fascia and tendon at lower leg level

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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⚠️ Excludes2

direct

Both codes can exist if both conditions are documented.

• injury of muscle, fascia and tendon at ankle (S96.-)
• injury of patellar ligament (tendon) (S76.1-)
• sprain of joints and ligaments of knee (S83.-)

Child Codes (6)

S86.0Injury of Achilles tendonHeader S86.1Injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelHeader S86.2Injury of muscle(s) and tendon(s) of anterior muscle group at lower leg levelHeader S86.3Injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelHeader S86.8Injury of other muscles and tendons at lower leg levelHeader S86.9Injury of unspecified muscle and tendon at lower leg levelHeader

Clinical Description

ICD-10-CM code S86 represents injury of muscle, fascia and tendon at lower leg level. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

Frequently Asked Questions

What is ICD-10 code S86?

ICD-10-CM code S86 is "Injury of muscle, fascia and tendon at lower leg level". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S86 a billable ICD-10 code?

No, S86 is a non-billable header code. A more specific child code must be used for billing.

Can S86 be coded with other codes?

S86 has 3 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

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Code Information

CodeS86

BillableNo — Header code

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes23 note(s)

Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)