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U.S. ICD-10-CM · FY 2027

S91.059S ICD-10-CM Code: Open bite, unspecified ankle, sequela

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

S91.059S

Open bite, unspecified ankle, sequela

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where S91.059S sits

  1. 1

    Chapter 19

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

  2. 2

    Section

    Injuries to the ankle and foot (S90-S99)

  3. 3

    Category S91

    Open wound of ankle, foot and toes

  4. 4

    Subcategory S91.059

    Open bite, unspecified ankle

  5. 5

    Code S91.059S

    Open bite, unspecified ankle, sequela

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for S91.059S.

Code first

No “code first” instruction is listed for S91.059S.

Use additional code

No “use additional code” instruction is listed for S91.059S.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for S91.059S.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for S91.059S.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code S91.059S mean?

S91.059S is the FY 2027 U.S. ICD-10-CM code for “Open bite, unspecified ankle, sequela.”

Is S91.059S a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, S91.059S has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is S91.059S located in ICD-10-CM?

S91.059S is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Injuries to the ankle and foot (S90-S99) (S90–S99), under category S91, Open wound of ankle, foot and toes and subcategory S91.059, Open bite, unspecified ankle.

What coding notes are listed for S91.059S?

No inclusion terms are listed for S91.059S in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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