ICD-10-CM › S00-T88 › S50-S59 › S56.30 Unspecified injury of extensor or... › S56.309
Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 3 more specific codes instead:
- S56.309A Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, initial encounter
- S56.309D Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, subsequent encounter
- S56.309S Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, sequela
This code requires a seventh character. See the rule below.
What has happened to this code
Every change the publisher made, from 2014 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.
- FY2014 Added to the draft code set draft Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
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 S56 Injury of muscle, fascia and tendon at forearm level
Seventh character required
- The appropriate 7th character is to be added to each code from category S56
Excludes2 - not included here
- injury of muscle, fascia and tendon at or below wrist (S66.-)
- sprain of joints and ligaments of elbow (S53.4-)
Code also
- any associated open wound (S51.-)
Inherited from the S50-S59 section Injuries to the elbow and forearm (S50-S59)
Excludes2 - not included here
- burns and corrosions (T20-T32)
- frostbite (T33-T34)
- injuries of wrist and hand (S60-S69)
- 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
- Injury > thumb > muscle
- Rupture, ruptured > muscle
- Rupture, ruptured > tendon
- Injury > muscle > extensor > thumb
- Injury > muscle > extensor > finger
- Injury > muscle > intrinsic > finger
- Rupture, ruptured > muscle > traumatic
- Injury > muscle > leg > posterior muscle group
- Rupture, ruptured > traumatic > muscle or tendon
- Injury > muscle > abductor > thumb, forearm level
- Injury > muscle > thumb > abductor
- Injury > muscle > thumb > extensor
Codes in the same group
| Code | Description | Status |
|---|---|---|
| S56.301 | Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level | Not billable |
| S56.302 | Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level | Not billable |