2027 ICD-10-CM Diagnosis Code S89Other and unspecified injuries of lower leg

ICD-10-CM Codes›S00–T88›S80-S89›S89

ICD-10-CM S89
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S89 is a non-billable ICD-10-CM category code for other and unspecified injuries of lower leg, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S89.001A, S89.001D, S89.001G, and S89.001K.

Code Identity

ICD-10-CM Code
S89
Billable Status
No — Non-Billable Category
Code Describes
Other and unspecified injuries of lower leg
Short Description
Other and unspecified injuries of lower leg
Same as the full description in the CMS dataset.
Chapter
S80-S89
Injuries to the knee and lower leg

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS80-S89Injuries to the knee and lower leg
CategoryS89Other and unspecified injuries of lower leg
This CodeS89Other and unspecified injuries of lower leg

Specific Coding for Other and unspecified injuries of lower legOverview

Non-specific codes like S89 require more characters. Use one of these billable codes instead:

  • S89.0 for Physeal fracture of upper end of tibia

  • S89.00 for Unspecified physeal fracture of upper end of tibia

  • S89.01 for Salter-Harris Type I physeal fracture of upper end of tibia

  • S89.02 for Salter-Harris Type II physeal fracture of upper end of tibia

  • S89.03 for Salter-Harris Type III physeal fracture of upper end of tibia

  • S89.04 for Salter-Harris Type IV physeal fracture of upper end of tibia

  • S89.09 for Other physeal fracture of upper end of tibia

  • S89.1 for Physeal fracture of lower end of tibia

  • S89.10 for Unspecified physeal fracture of lower end of tibia

  • S89.11 for Salter-Harris Type I physeal fracture of lower end of tibia

  • S89.12 for Salter-Harris Type II physeal fracture of lower end of tibia

  • S89.13 for Salter-Harris Type III physeal fracture of lower end of tibia

  • S89.14 for Salter-Harris Type IV physeal fracture of lower end of tibia

  • S89.19 for Other physeal fracture of lower end of tibia

  • S89.2 for Physeal fracture of upper end of fibula

  • S89.20 for Unspecified physeal fracture of upper end of fibula

  • S89.21 for Salter-Harris Type I physeal fracture of upper end of fibula

  • S89.22 for Salter-Harris Type II physeal fracture of upper end of fibula

  • S89.29 for Other physeal fracture of upper end of fibula

  • S89.3 for Physeal fracture of lower end of fibula

  • S89.30 for Unspecified physeal fracture of lower end of fibula

  • S89.31 for Salter-Harris Type I physeal fracture of lower end of fibula

  • S89.32 for Salter-Harris Type II physeal fracture of lower end of fibula

  • S89.39 for Other physeal fracture of lower end of fibula

  • S89.8 for Other specified injuries of lower leg

  • S89.80 for Other specified injuries of unspecified lower leg

  • S89.81 for Other specified injuries of right lower leg

  • S89.82 for Other specified injuries of left lower leg

  • S89.9 for Unspecified injury of lower leg

  • S89.90 for Unspecified injury of unspecified lower leg

  • S89.91 for Unspecified injury of right lower leg

  • S89.92 for Unspecified injury of left lower leg

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Other and unspecified injuries of lower leg (S89). 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 S89: its own notes plus those printed at block S80-S89 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.

On S89 itself
  • other and unspecified injuries of ankle and foot (S99.-)
From Block S80-S89 Injuries to the knee and lower leg applies to 4,680 codes
  • 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)
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.-)

Notes

General instructions on how these codes are used.

On S89 itself
  • A fracture not indicated as open or closed should be coded to closed
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 subcategories S89.0, S89.1, S89.2, and S89.3
Values for category S89 Closed Fracture Encounter
  • Ainitial encounter for closed fracture
  • Dsubsequent encounter for fracture with routine healing
  • Gsubsequent encounter for fracture with delayed healing
  • Ksubsequent encounter for fracture with nonunion
  • Psubsequent encounter for fracture with malunion
  • Ssequela

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

Patient EducationClinical

Leg Injuries and Disorders

Your legs are made up of bones, blood vessels, muscles, and other connective tissue. They are important for motion and standing. Playing sports, running, falling, or having an accident can damage your legs. Common leg injuries include sprains and strains, joint dislocations, and fractures (broken bones).

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 S89Overview

What is the ICD-10 code for other and unspecified injuries of lower leg?

S89 is the ICD-10-CM category for other and unspecified injuries of lower leg, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is S89 (Other and unspecified injuries of lower leg) a billable code?

No. This is a category header that groups the codes for other and unspecified injuries of lower leg, and headers cannot be submitted on claims. Claims for other and unspecified injuries of lower leg need a more specific code from this category, such as S89.001A, S89.001D, and S89.001G.