ICD-10-CM 2027 diagnosis code
S90.4Other superficial injuries of toe
S90.4 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S90.4
S90.4 is the ICD-10-CM diagnosis code for other superficial injuries of toe. It belongs to category S90 (superficial injury of ankle, foot and toes), block S90-S99 (injuries to the ankle and foot) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.
Within S90, choose S90.4 (Other superficial injuries of toe) only when documentation doesn't support a more specific option: contusion of ankle (S90.0), contusion of toe without damage to nail (S90.1), contusion of toe with damage to nail (S90.2), contusion of foot (S90.3), other superficial injuries of ankle (S90.5), other superficial injuries of foot (S90.8) and unspecified superficial injury of ankle, foot and toe (S90.9).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category S90
- S90.41Abrasion of toe
- S90.42Blister (nonthermal) of toe
- S90.44External constriction of toe
- S90.45Superficial foreign body of toe
- S90.451Superficial foreign body, right great toe
- S90.452Superficial foreign body, left great toe
- S90.453Superficial foreign body, unspecified great toe
- S90.454Superficial foreign body, right lesser toe(s)
- S90.455Superficial foreign body, left lesser toe(s)
- S90.456Superficial foreign body, unspecified lesser toe(s)
- S90.46Insect bite (nonvenomous) of toe
- S90.461Insect bite (nonvenomous), right great toe
- S90.462Insect bite (nonvenomous), left great toe
- S90.463Insect bite (nonvenomous), unspecified great toe
- S90.464Insect bite (nonvenomous), right lesser toe(s)
- S90.465Insect bite (nonvenomous), left lesser toe(s)
- S90.466Insect bite (nonvenomous), unspecified lesser toe(s)
- S90.47Other superficial bite of toe
- S90.471Other superficial bite of right great toe
- S90.472Other superficial bite of left great toe
- S90.473Other superficial bite of unspecified great toe
- S90.474Other superficial bite of right lesser toe(s)
- S90.475Other superficial bite of left lesser toe(s)
- S90.476Other superficial bite of unspecified lesser toe(s)
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to S90.4.
Broader instructions also apply from S90-S99 Injuries to the ankle and foot and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S90.4
Is S90.4 billable?
- No. S90.4 is a header code. Report one of its more specific subcodes instead.