Injuries to the ankle and foot (S90-S99)

Instructional notes

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers 7th character use and coding of injuries, fractures, burns, drug and toxic effects, abuse and neglect, and complications of care (S00-T88).

• Application of 7th Characters in Chapter 19 (page 77)
• Coding of Injuries (page 78)
• Coding of Traumatic Fractures (page 79)
• Coding of Burns and Corrosions (page 80)
• Adverse Effects, Poisoning, Underdosing and Toxic Effects (page 82)
• Adult and child abuse, neglect and other maltreatment (page 85)
• Complications of care (page 85)

Read Section I.C.19 (page 77)

Codes under S90-S99

S90-S99 can't be used on a claim. Pick a billable code below; grey headings group them.

• S90Superficial injury of ankle, foot and toes
• S91Open wound of ankle, foot and toes
• S92Fracture of foot and toe, except ankle
• S93Dislocation and sprain of joints and ligaments at ankle, foot and toe level
• S94Injury of nerves at ankle and foot level
• S95Injury of blood vessels at ankle and foot level
• S96Injury of muscle and tendon at ankle and foot level
• S97Crushing injury of ankle and foot
• S98Traumatic amputation of ankle and foot
• S99Other and unspecified injuries of ankle and foot

S90-S99 MS-DRGs

This code does not group to an MS-DRG as a principal diagnosis.

Other codes that refer to S90-S99

Notes on these codes point to S90-S99.

• S80-S89 Excludes2: injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.