S93.402A — Sprain of unspecified ligament of left ankle, initial encounter

S93.402A

ICD-10 Chapter 19: Injury & Poisoning — illustrative image — Chapter 19: Injury, poisoning and certain other consequences of external causes (S00–T88) — illustrative image

What this code means

A sprain of a ligament of the left ankle (a twisted ankle), ligament unspecified, at the first encounter.

Also called: left ankle sprain.

When this code is used

Used for sprain of unspecified ligament of left ankle, initial encounter.

Where it sits in ICD-10-CM

Code S93.402A belongs to Chapter 19: Injury, poisoning and certain other consequences of external causes, which covers codes S00–T88 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Ankle pain

Frequently asked questions

What is ICD-10-CM code S93.402A?

S93.402A is the ICD-10-CM diagnosis code for “Sprain of unspecified ligament of left ankle, initial encounter”. A sprain of a ligament of the left ankle (a twisted ankle), ligament unspecified, at the first encounter.

When is code S93.402A used?

Used for sprain of unspecified ligament of left ankle, initial encounter. It belongs to Chapter 19 of ICD-10-CM (Injury, poisoning and certain other consequences of external causes).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.