S91.159
Open bite of unspecified toe(s) without damage to nail
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 6 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 8 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
S91code
Code also
- any associated wound infection
S00-T88chapter
Notes
- 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.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Alongside this code 6 same parent — S91.15
S91.151 Open bite of right great toe without damage to nail category S91.152 Open bite of left great toe without damage to nail category S91.153 Open bite of unspecified great toe without damage to nail category S91.154 Open bite of right lesser toe(s) without damage to nail category S91.155 Open bite of left lesser toe(s) without damage to nail category S91.156 Open bite of unsp lesser toe(s) without damage to nail category
Subordinate codes 3
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.