2027 ICD-10-CM Diagnosis Code S94Injury of nerves at ankle and foot level

ICD-10-CM Codes›S00–T88›S90-S99›S94

ICD-10-CM S94
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S94 is a non-billable ICD-10-CM category code for injury of nerves at ankle and foot level, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S94.00XA, S94.00XD, S94.00XS, and S94.01XA.

Code Identity

ICD-10-CM Code
S94
Billable Status
No — Non-Billable Category
Code Describes
Injury of nerves at ankle and foot level
Short Description
Injury of nerves at ankle and foot level
Same as the full description in the CMS dataset.
Chapter
S90-S99
Injuries to the ankle and foot

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS90-S99Injuries to the ankle and foot
CategoryS94Injury of nerves at ankle and foot level
This CodeS94Injury of nerves at ankle and foot level

Specific Coding for Injury of nerves at ankle and foot levelOverview

Non-specific codes like S94 require more characters. Use one of these billable codes instead:

  • S94.0 for Injury of lateral plantar nerve

  • S94.00 for Injury of lateral plantar nerve, unspecified leg

  • S94.01 for Injury of lateral plantar nerve, right leg

  • S94.02 for Injury of lateral plantar nerve, left leg

  • S94.1 for Injury of medial plantar nerve

  • S94.10 for Injury of medial plantar nerve, unspecified leg

  • S94.11 for Injury of medial plantar nerve, right leg

  • S94.12 for Injury of medial plantar nerve, left leg

  • S94.2 for Injury of deep peroneal nerve at ankle and foot level

  • S94.20 for Injury of deep peroneal nerve at ankle and foot level, unspecified leg

  • S94.21 for Injury of deep peroneal nerve at ankle and foot level, right leg

  • S94.22 for Injury of deep peroneal nerve at ankle and foot level, left leg

  • S94.3 for Injury of cutaneous sensory nerve at ankle and foot level

  • S94.30 for Injury of cutaneous sensory nerve at ankle and foot level, unspecified leg

  • S94.31 for Injury of cutaneous sensory nerve at ankle and foot level, right leg

  • S94.32 for Injury of cutaneous sensory nerve at ankle and foot level, left leg

  • S94.8 for Injury of other nerves at ankle and foot level

  • S94.8X for Injury of other nerves at ankle and foot level

  • S94.9 for Injury of unspecified nerve at ankle and foot level

  • S94.90 for Injury of unspecified nerve at ankle and foot level, unspecified leg

  • S94.91 for Injury of unspecified nerve at ankle and foot level, right leg

  • S94.92 for Injury of unspecified nerve at ankle and foot level, left leg

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Injury of nerves at ankle and foot level (S94). Use the following options for the applicable episode of care:

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

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S94: its own notes plus those printed at block S90-S99 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block S90-S99 Injuries to the ankle and foot applies to 3,324 codes
  • burns and corrosions (T20-T32)
  • fracture of ankle and malleolus (S82.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

  • any associated open wound (S91.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category S94
Values for category S94 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name S94, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming S94: its condition is not part of those codes, and both may be reported when the patient has both.

  • S74 Injury of nerves at hip and thigh level
    injury of nerves at ankle and foot level (S94.-)
  • S84 Injury of nerves at lower leg level
    injury of nerves at ankle and foot level (S94.-)

Patient EducationClinical

Ankle Injuries and Disorders

Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another, stabilize and support it. Your muscles and tendons move it.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S94Overview

What is the ICD-10 code for injury of nerves at ankle and foot level?

S94 is the ICD-10-CM category for injury of nerves at ankle and foot level, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is S94 (Injury of nerves at ankle and foot level) a billable code?

No. This is a category header that groups the codes for injury of nerves at ankle and foot level, and headers cannot be submitted on claims. Claims for injury of nerves at ankle and foot level need a more specific code from this category, such as S94.00XA, S94.00XD, and S94.00XS.