S91.252

⚠ Non-billable (Header)

Open bite of left great toe with damage to nail

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

S91.25

• superficial bite of toe (S90.46-, S90.47-)

S91

• open fracture of ankle, foot and toes (S92.-with 7th character B)
• traumatic amputation of ankle and foot (S98.-)

Child Codes (3)

S91.252AOpen bite of left great toe with damage to nail, initial encounter✓ Billable S91.252DOpen bite of left great toe with damage to nail, subsequent encounter✓ Billable S91.252SOpen bite of left great toe with damage to nail, sequela✓ Billable

Clinical Description

ICD-10-CM code S91.252 represents open bite of left great toe with damage to nail. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under S91.252. Coders should note that S91.252 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code S91.252?

ICD-10-CM code S91.252 is "Open bite of left great toe with damage to nail". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S91.252 a billable ICD-10 code?

No, S91.252 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with S91.252?

S91.252 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in S91.25

Other codes in the same category that may be relevant for differential coding:

S91.251Open bite of right great toe with damage to nail S91.253Open bite of unspecified great toe with damage to nail S91.254Open bite of right lesser toe(s) with damage to nail S91.255Open bite of left lesser toe(s) with damage to nail S91.256Open bite of unspecified lesser toe(s) with damage to nail S91.259Open bite of unspecified toe(s) with damage to nail

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Code Information

CodeS91.252

BillableNo — Header code

ParentS91.25

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes13 rule(s)

Excludes20 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)