ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S91 includes traumatic open wounds of the ankle, foot, and toes such as lacerations, puncture wounds, and avulsions, with codes that capture specific locations and laterality. These ICD-10-CM diagnosis codes are used to document acute traumatic skin and soft tissue injuries to the distal lower extremity, capturing wound type, depth, and involvement of underlying structures when applicable. Accurate coding within the ICD-10-CM S91 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM S91: Open Wound Of Ankle, Foot And Toes Overview

The ICD-10-CM S91 group covers open wounds of the ankle, foot, and toes, including lacerations, punctures, and avulsions. These diagnoses target traumatic soft tissue and skin injuries to the distal lower extremity and may involve underlying structures such as tendons or bones. Accurate coding matters for reimbursement because specificity (location, laterality, and wound type) affects claim processing and clinical documentation completeness.

When to Use

Use a code from this group when documenting an acute open wound to the ankle, foot, or toe that requires medical evaluation, treatment, or follow up, and when clinical notes specify location, wound type, and laterality. Select the most specific code that reflects the wound characteristics, including whether deeper structures are involved and whether the injury is uncomplicated or involves infection or foreign body.

ICD-10-CM Codes

360 rows

ICD-10-CM Code	Description
S91.001A	Unspecified open wound, right ankle, initial encounter
S91.001D	Unspecified open wound, right ankle, subsequent encounter
S91.001S	Unspecified open wound, right ankle, sequela
S91.002A	Unspecified open wound, left ankle, initial encounter
S91.002D	Unspecified open wound, left ankle, subsequent encounter
S91.002S	Unspecified open wound, left ankle, sequela
S91.009A	Unspecified open wound, unspecified ankle, initial encounter
S91.009D	Unspecified open wound, unspecified ankle, subsequent encounter
S91.009S	Unspecified open wound, unspecified ankle, sequela
S91.011A	Laceration without foreign body, right ankle, initial encounter
S91.011D	Laceration without foreign body, right ankle, subsequent encounter
S91.011S	Laceration without foreign body, right ankle, sequela
S91.012A	Laceration without foreign body, left ankle, initial encounter
S91.012D	Laceration without foreign body, left ankle, subsequent encounter
S91.012S	Laceration without foreign body, left ankle, sequela
S91.019A	Laceration without foreign body, unspecified ankle, initial encounter
S91.019D	Laceration without foreign body, unspecified ankle, subsequent encounter
S91.019S	Laceration without foreign body, unspecified ankle, sequela
S91.021A	Laceration with foreign body, right ankle, initial encounter
S91.021D	Laceration with foreign body, right ankle, subsequent encounter

Showing 1–20 of 360

DRG Codes

9 rows

DRG Code	Description
604	Trauma to the Skin, Subcutaneous Tissue and Breast with MCC
605	Trauma to the Skin, Subcutaneous Tissue and Breast without MCC
913	Traumatic Injury with MCC
914	Traumatic Injury without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

ICD-10-CM Code For Superficial Injury Of Ankle Foot And Toes: Group Overview

S92-FRACTURE-OF-FOOT-AND-TOE

ICD-10-CM Code For Fracture Of Foot And Toe Except Ankle: Group Overview

S93-DISLOCATION-AND-SPRAIN-ANKLE-FOOT-TOE

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments At Ankle, Foot And Toe Level: Group Overview

S94-INJURY-OF-NERVES-ANKLE-FOOT

ICD-10-CM Code For Injury Of Nerves At Ankle And Foot Level: Group Overview

S95-INJURY-OF-BLOOD-VESSELS-ANKLE-FOOT

ICD-10-CM Code For Injury Of Blood Vessels At Ankle And Foot Level: Group Overview

S96-INJURY-OF-MUSCLE-AND-TENDON-ANKLE-FOOT

ICD-10-CM Code For Injury Of Muscle And Tendon At Ankle And Foot Level: Group Overview

S97-CRUSHING-INJURY-OF-ANKLE-AND-FOOT

ICD-10-CM Code For Crushing Injury Of Ankle And Foot: Group Overview

S98-TRAUMATIC-AMPUTATION-OF-ANKLE-AND-FOOT

ICD-10-CM Code For Traumatic Amputation Of Ankle And Foot: Group Overview

S99-OTHER-AND-UNSPECIFIED-INJURIES-ANKLE-FOOT

ICD-10-CM Code For Other And Unspecified Injuries Of Ankle And Foot: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

360 rows

ICD-10-CM Code	Description
S91.001A	Unspecified open wound, right ankle, initial encounter
S91.001D	Unspecified open wound, right ankle, subsequent encounter
S91.001S	Unspecified open wound, right ankle, sequela
S91.002A	Unspecified open wound, left ankle, initial encounter
S91.002D	Unspecified open wound, left ankle, subsequent encounter
S91.002S	Unspecified open wound, left ankle, sequela
S91.009A	Unspecified open wound, unspecified ankle, initial encounter
S91.009D	Unspecified open wound, unspecified ankle, subsequent encounter
S91.009S	Unspecified open wound, unspecified ankle, sequela
S91.011A	Laceration without foreign body, right ankle, initial encounter
S91.011D	Laceration without foreign body, right ankle, subsequent encounter
S91.011S	Laceration without foreign body, right ankle, sequela
S91.012A	Laceration without foreign body, left ankle, initial encounter
S91.012D	Laceration without foreign body, left ankle, subsequent encounter
S91.012S	Laceration without foreign body, left ankle, sequela
S91.019A	Laceration without foreign body, unspecified ankle, initial encounter
S91.019D	Laceration without foreign body, unspecified ankle, subsequent encounter
S91.019S	Laceration without foreign body, unspecified ankle, sequela
S91.021A	Laceration with foreign body, right ankle, initial encounter
S91.021D	Laceration with foreign body, right ankle, subsequent encounter

Showing 1–20 of 360

DRG Codes

9 rows

DRG Code	Description
604	Trauma to the Skin, Subcutaneous Tissue and Breast with MCC
605	Trauma to the Skin, Subcutaneous Tissue and Breast without MCC
913	Traumatic Injury with MCC
914	Traumatic Injury without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

ICD-10-CM Code For Superficial Injury Of Ankle Foot And Toes: Group Overview

S92-FRACTURE-OF-FOOT-AND-TOE

ICD-10-CM Code For Fracture Of Foot And Toe Except Ankle: Group Overview

S93-DISLOCATION-AND-SPRAIN-ANKLE-FOOT-TOE

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments At Ankle, Foot And Toe Level: Group Overview

S94-INJURY-OF-NERVES-ANKLE-FOOT

ICD-10-CM Code For Injury Of Nerves At Ankle And Foot Level: Group Overview

S95-INJURY-OF-BLOOD-VESSELS-ANKLE-FOOT

ICD-10-CM Code For Injury Of Blood Vessels At Ankle And Foot Level: Group Overview

S96-INJURY-OF-MUSCLE-AND-TENDON-ANKLE-FOOT

ICD-10-CM Code For Injury Of Muscle And Tendon At Ankle And Foot Level: Group Overview

S97-CRUSHING-INJURY-OF-ANKLE-AND-FOOT

ICD-10-CM Code For Crushing Injury Of Ankle And Foot: Group Overview

S98-TRAUMATIC-AMPUTATION-OF-ANKLE-AND-FOOT

ICD-10-CM Code For Traumatic Amputation Of Ankle And Foot: Group Overview

S99-OTHER-AND-UNSPECIFIED-INJURIES-ANKLE-FOOT

ICD-10-CM Code For Other And Unspecified Injuries Of Ankle And Foot: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

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ICD-10-CM S91: Open Wound Of Ankle, Foot And Toes Overview

ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

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ICD-10-CM S91: Open Wound Of Ankle, Foot And Toes Overview

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

References

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

References

ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

Sign up for ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview policy alerts

ICD-10-CM S91: Open Wound Of Ankle, Foot And Toes Overview

ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview

Sign up for ICD-10-CM Code For Open Wound Of Ankle Foot And Toes: Group Overview policy alerts

ICD-10-CM S91: Open Wound Of Ankle, Foot And Toes Overview

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

Which anatomical areas does the ICD-10-CM S91 group cover?

How does laterality appear in S91 codes?

What encounter types are represented in the S91 code set?

How do S91 codes indicate presence of a foreign body or nail damage?

Which DRGs are related to the S91 diagnosis group for reimbursement grouping?

References

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

Which anatomical areas does the ICD-10-CM S91 group cover?

How does laterality appear in S91 codes?

What encounter types are represented in the S91 code set?

How do S91 codes indicate presence of a foreign body or nail damage?

Which DRGs are related to the S91 diagnosis group for reimbursement grouping?

References