AutoICD API

S81

Non-billable

Open wound of knee and lower leg

Open wound of knee and lower leg

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

S80-S89

Child Codes

2

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)
  • open fracture of knee and lower leg (S82.-)
  • traumatic amputation of lower leg (S88.-)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)
  • open wound of ankle and foot (S91.-)

Use Additional Code

Additional codes that should follow this code

  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be required; sequencing depends on circumstances

  • any associated wound infection

7th Character Definitions

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Child Codes (2)

S81.0

Open wound of knee

S81.8

Open wound of lower leg

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code S81?

ICD-10-CM code S81 represents "Open wound of knee and lower leg". It is a non-billable header code — use a more specific child code for billing purposes.

Is S81 a billable code?

No, S81 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under S81.

What chapter is S81 in?

S81 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).

What codes cannot be used with S81?

S81 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71); open fracture of knee and lower leg (S82.-); and 1 more.

What are the subcategories under S81?

S81 has 2 child codes, including: S81.0 (Open wound of knee), S81.8 (Open wound of lower leg).

Are additional codes required with S81?

Yes, when using S81 you should also code: code to identify any retained foreign body, if applicable (Z18.-).

What are the UMLS CUIs for S81?

S81 is linked to 1 UMLS Concept Unique Identifier: C2860500. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.