ICD-10-CM › S00-T88 › S80-S89 › S81.0 Open wound of knee › S81.00
Unspecified open wound of knee
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:
- S81.001 Unspecified open wound, right knee (also a header)
- S81.002 Unspecified open wound, left knee (also a header)
- S81.009 Unspecified open wound, unspecified knee (also a header)
This code requires a seventh character. See the rule below.
What has happened to this code
Every change the publisher made, from 2012 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.
- FY2012 Added to the draft code set draft Unspecified open wound of knee
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 S81 Open wound of knee and lower leg
Seventh character required
- The appropriate 7th character is to be added to each code from category S81
Excludes1 - never coded here
- open fracture of knee and lower leg (S82.-)
- traumatic amputation of lower leg (S88.-)
Excludes2 - not included here
- open wound of ankle and foot (S91.-)
Code also
- any associated wound infection
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.
- Wound, open > calf
- Wound, open > shin
- Injury > leg > open
- Injury > knee > open
- Wound, open > leg > knee
- Wound, open > popliteal space
- Wound, open > knee
Codes in the same group
| Code | Description | Status |
|---|---|---|
| S81.01 | Laceration without foreign body of knee | Not billable |
| S81.02 | Laceration with foreign body of knee | Not billable |
| S81.03 | Puncture wound without foreign body of knee | Not billable |
| S81.04 | Puncture wound with foreign body of knee | Not billable |
| S81.05 | Open bite of knee | Not billable |