ICD-10-CM › S00-T88 › S80-S89 › S86.312 Strain of muscle(s) and tendon(s)... › S86.312A
Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, initial encounter
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, initial encounter
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from S86 Injury of muscle, fascia and tendon at lower leg level
Seventh character required
- The appropriate 7th character is to be added to each code from category S86
Excludes2 - not included here
- injury of muscle, fascia and tendon at ankle (S96.-)
- injury of patellar ligament (tendon) (S76.1-)
- sprain of joints and ligaments of knee (S83.-)
Code also
- any associated open wound (S81.-)
Inherited from the S80-S89 section Injuries to the knee and lower leg (S80-S89)
Excludes2 - not included here
- 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)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Cut > muscle
- Injury > fascia
- Injury > tendon
- Strain > muscle
- Strain > tendon
- Avulsion > muscle
- Avulsion > tendon
- Division > muscle
- Laceration > muscle
- Laceration > tendon
- Tear, torn > muscle
- Tear, torn > tendon
- Injury > leg > muscle
- Rupture, ruptured > muscle
- Rupture, ruptured > tendon
- Injury > muscle > extensor > finger
- Injury > muscle > intrinsic > finger
- Rupture, ruptured > muscle > traumatic
- Injury > muscle > leg > peroneal muscle group
- Injury > muscle > leg > posterior muscle group
- Rupture, ruptured > traumatic > muscle or tendon
- Injury > muscle > peroneal muscle group, at leg level > strain
Codes in the same group
| Code | Description | Status |
|---|---|---|
| S86.312D | Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, subsequent encounter | Valid |
| S86.312S | Strain of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, sequela | Valid |