AutoICD API

S91.3

Non-billable

Open wound of foot

Open wound of foot

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

Status

Non-billable / Header

Block

S90-S99

Parent Code

S91

Child Codes

6

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 ankle, foot and toes (S92.-with 7th character B)
  • traumatic amputation of ankle and foot (S98.-)

Excludes 2

Conditions not included here, but the patient may have both

  • burns and corrosions (T20-T32)
  • fracture of ankle and malleolus (S82.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)

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

Child Codes (6)

S91.30

Unspecified open wound of foot

S91.31

Laceration without foreign body of foot

S91.32

Laceration with foreign body of foot

S91.33

Puncture wound without foreign body of foot

S91.34

Puncture wound with foreign body of foot

S91.35

Open bite of foot

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code S91.3?

ICD-10-CM code S91.3 represents "Open wound of foot". It is a non-billable header code — use a more specific child code for billing purposes.

Is S91.3 a billable code?

No, S91.3 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under S91.3.

What chapter is S91.3 in?

S91.3 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).

What codes cannot be used with S91.3?

S91.3 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71); open fracture of ankle, foot and toes (S92.-with 7th character B); and 1 more.

What are the subcategories under S91.3?

S91.3 has 6 child codes, including: S91.30 (Unspecified open wound of foot), S91.31 (Laceration without foreign body of foot), S91.32 (Laceration with foreign body of foot), S91.33 (Puncture wound without foreign body of foot), and 2 more.

Are additional codes required with S91.3?

Yes, when using S91.3 you should also code: code to identify any retained foreign body, if applicable (Z18.-).

What are the UMLS CUIs for S91.3?

S91.3 is linked to 1 UMLS Concept Unique Identifier: C0347573. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

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.