S86
Non-Billable

Injury of muscle, fascia and tendon at lower leg level

Non-Billable / Non-Specific Code

What is Injury of muscle, fascia and tendon at lower leg level?

ICD-10-CM S86 is the diagnosis code for Injury of muscle, fascia and tendon at lower leg level. This code falls under the section "Injuries to the knee and lower leg" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for S86

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in S86. If the patient has both, code each condition separately:

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

ICD-10-CM Code Hierarchy

Understanding where S86 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeS86 — Injury of muscle, fascia and tendon at lower leg level
Sub-Codes 6 entries
S86.0Injury of Achilles tendonNon-BillableS86.00Unspecified injury of Achilles tendonNon-BillableS86.001Unspecified injury of right Achilles tendonBillableS86.002Unspecified injury of left Achilles tendonBillableS86.009Unspecified injury of unspecified Achilles tendonBillableS86.01Strain of Achilles tendonNon-BillableS86.011Strain of right Achilles tendonBillableS86.012Strain of left Achilles tendonBillableS86.019Strain of unspecified Achilles tendonBillableS86.02Laceration of Achilles tendonNon-BillableS86.021Laceration of right Achilles tendonBillableS86.022Laceration of left Achilles tendonBillableS86.029Laceration of unspecified Achilles tendonBillableS86.09Other specified injury of Achilles tendonNon-BillableS86.091Other specified injury of right Achilles tendonBillableS86.092Other specified injury of left Achilles tendonBillableS86.099Other specified injury of unspecified Achilles tendonBillableS86.1Injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelNon-BillableS86.10Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelNon-BillableS86.101Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right legBillableS86.102Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, left legBillableS86.109Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified legBillableS86.11Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelNon-BillableS86.111Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right legBillableS86.112Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, left legBillableS86.119Strain of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified legBillableS86.12Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelNon-BillableS86.121Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right legBillableS86.122Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, left legBillableS86.129Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified legBillableS86.19Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg levelNon-BillableS86.191Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right legBillableS86.192Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, left legBillableS86.199Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified legBillableS86.2Injury of muscle(s) and tendon(s) of anterior muscle group at lower leg levelNon-BillableS86.20Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg levelNon-BillableS86.201Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, right legBillableS86.202Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, left legBillableS86.209Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified legBillableS86.21Strain of muscle(s) and tendon(s) of anterior muscle group at lower leg levelNon-BillableS86.211Strain of muscle(s) and tendon(s) of anterior muscle group at lower leg level, right legBillableS86.212Strain of muscle(s) and tendon(s) of anterior muscle group at lower leg level, left legBillableS86.219Strain of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified legBillableS86.22Laceration of muscle(s) and tendon(s) of anterior muscle group at lower leg levelNon-BillableS86.221Laceration of muscle(s) and tendon(s) of anterior muscle group at lower leg level, right legBillableS86.222Laceration of muscle(s) and tendon(s) of anterior muscle group at lower leg level, left legBillableS86.229Laceration of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified legBillableS86.29Other injury of muscle(s) and tendon(s) of anterior muscle group at lower leg levelNon-BillableS86.291Other injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, right legBillableS86.292Other injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, left legBillableS86.299Other injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified legBillableS86.3Injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelNon-BillableS86.30Unspecified injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelNon-BillableS86.301Unspecified injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right legBillableS86.302Unspecified injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left legBillableS86.309Unspecified injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified legBillableS86.31Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelNon-BillableS86.311Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right legBillableS86.312Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left legBillableS86.319Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified legBillableS86.32Laceration of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelNon-BillableS86.321Laceration of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right legBillableS86.322Laceration of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left legBillableS86.329Laceration of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified legBillableS86.39Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg levelNon-BillableS86.391Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right legBillableS86.392Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left legBillableS86.399Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified legBillableS86.8Injury of other muscles and tendons at lower leg levelNon-BillableS86.80Unspecified injury of other muscles and tendons at lower leg levelNon-BillableS86.801Unspecified injury of other muscle(s) and tendon(s) at lower leg level, right legBillableS86.802Unspecified injury of other muscle(s) and tendon(s) at lower leg level, left legBillableS86.809Unspecified injury of other muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.81Strain of other muscles and tendons at lower leg levelNon-BillableS86.811Strain of other muscle(s) and tendon(s) at lower leg level, right legBillableS86.812Strain of other muscle(s) and tendon(s) at lower leg level, left legBillableS86.819Strain of other muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.82Laceration of other muscles and tendons at lower leg levelNon-BillableS86.821Laceration of other muscle(s) and tendon(s) at lower leg level, right legBillableS86.822Laceration of other muscle(s) and tendon(s) at lower leg level, left legBillableS86.829Laceration of other muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.89Other injury of other muscles and tendons at lower leg levelNon-BillableS86.891Other injury of other muscle(s) and tendon(s) at lower leg level, right legBillableS86.892Other injury of other muscle(s) and tendon(s) at lower leg level, left legBillableS86.899Other injury of other muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.9Injury of unspecified muscle and tendon at lower leg levelNon-BillableS86.90Unspecified injury of unspecified muscle and tendon at lower leg levelNon-BillableS86.901Unspecified injury of unspecified muscle(s) and tendon(s) at lower leg level, right legBillableS86.902Unspecified injury of unspecified muscle(s) and tendon(s) at lower leg level, left legBillableS86.909Unspecified injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.91Strain of unspecified muscle and tendon at lower leg levelNon-BillableS86.911Strain of unspecified muscle(s) and tendon(s) at lower leg level, right legBillableS86.912Strain of unspecified muscle(s) and tendon(s) at lower leg level, left legBillableS86.919Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.92Laceration of unspecified muscle and tendon at lower leg levelNon-BillableS86.921Laceration of unspecified muscle(s) and tendon(s) at lower leg level, right legBillableS86.922Laceration of unspecified muscle(s) and tendon(s) at lower leg level, left legBillableS86.929Laceration of unspecified muscle(s) and tendon(s) at lower leg level, unspecified legBillableS86.99Other injury of unspecified muscle and tendon at lower leg levelNon-BillableS86.991Other injury of unspecified muscle(s) and tendon(s) at lower leg level, right legBillableS86.992Other injury of unspecified muscle(s) and tendon(s) at lower leg level, left legBillableS86.999Other injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified legBillable
Related Codes

Frequently Asked Questions

Is S86 a billable ICD-10-CM code?

No, S86 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does S86 mean?

S86 is the ICD-10-CM diagnosis code for "Injury of muscle, fascia and tendon at lower leg level". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is S86 in?

S86 is located in Section S80-S89 — "Injuries to the knee and lower leg" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of S86?

S86 has 6 sub-code(s) that provide more specific detail: S86.0, S86.1, S86.2, S86.3, S86.8 and more.

When should I use S86?

Use S86 when the patients documented diagnosis matches "Injury of muscle, fascia and tendon at lower leg level" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Injury of muscle, fascia and tendon at lower leg level?

The ICD-10-CM code for Injury of muscle, fascia and tendon at lower leg level is S86.

Can S86 be used for primary diagnosis?

No, S86 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is S86 in?

S86 is in Chapter 19 of the ICD-10-CM Tabular List.

Is S86 valid for 2026?

Yes, S86 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousS85.999Other specified injury of unspecified blood vessel at lower leg level, unspecified legNext →S86.0Injury of Achilles tendon
Code Details
S86
Injury of muscle, fascia and tendon at lower leg level
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
S80-S89 — Injuries to the knee and lower leg
2026 ICD-10-CM