2021

  1. ICD-10-CM Codes
    2. ›
  2. S00-T88 Injury, poisoning and certain other consequences of external causes
    3. ›
  3. S80-S89 Injuries to the knee and lower leg
    4. ›
  4. S86- Injury of muscle, fascia and tendon at lower leg level
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code S86.399A

2021 ICD-10-CM Diagnosis Code S86.399A

Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified leg, initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • S86.399A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Inj musc/tend peroneal grp at low leg level, unsp leg, init
  • The 2021 edition of ICD-10-CM S86.399A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S86.399A - other international versions of ICD-10 S86.399A may differ.
The following code(s) above S86.399A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to S86.399A:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S80-S89
    2021 ICD-10-CM Range S80-S89

    Injuries to the knee and lower leg

    Type 2 Excludes
    • burns and corrosions (T20-T32)
    • frostbite (T33-T34)
    • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
    • insect bite or sting, venomous (T63.4)
    Injuries to the knee and lower leg
  • S86
    ICD-10-CM Diagnosis Code S86

    Injury of muscle, fascia and tendon at lower leg level

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated open wound (S81.-)
    Type 2 Excludes
    • injury of muscle, fascia and tendon at ankle (S96.-)
    • injury of patellar ligament (tendon) (S76.1-)
    • sprain of joints and ligaments of knee (S83.-)
    Injury of muscle, fascia and tendon at lower leg level
ICD-10-CM S86.399A is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 913 Traumatic injury with mcc
  • 914 Traumatic injury without mcc
  • 963 Other multiple significant trauma with mcc
  • 964 Other multiple significant trauma with cc
  • 965 Other multiple significant trauma without cc/mcc

Convert S86.399A to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To S86.399A
S86.39 Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level
S86.391 Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right leg
S86.391A …… initial encounter
S86.391D …… subsequent encounter
S86.391S …… sequela
S86.392 Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg
S86.392A …… initial encounter
S86.392D …… subsequent encounter
S86.392S …… sequela
S86.399 Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified leg
S86.399A …… initial encounter
S86.399D …… subsequent encounter
S86.399S …… sequela
S86.8 Injury of other muscles and tendons at lower leg level
S86.80 Unspecified injury of other muscles and tendons at lower leg level
S86.801 Unspecified injury of other muscle(s) and tendon(s) at lower leg level, right leg
S86.801A …… initial encounter
S86.801D …… subsequent encounter
S86.801S …… sequela
S86.802 Unspecified injury of other muscle(s) and tendon(s) at lower leg level, left leg
S86.802A …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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