S63.496 Traumatic rupture of other ligament of right little finger at metacarpophalangeal and interphalangeal joint

ICD-10-CM Code S63.496: Traumatic Rupture of Other Ligament of Right Little Finger

ICD-10-CM code S63.496 identifies a traumatic rupture of an other ligament of the right little finger at the metacarpophalangeal and interphalangeal joint. The terminology is active and falls under the broader category of finger ligament ruptures, classified as an injury or poisoning concept. 1 3

Plain-language overview

This diagnosis code describes a traumatic tear of a ligament in the right little finger, specifically involving the joints connecting the finger bones, and is classified under the semantic type of injury or poisoning. 1

What this code represents

The code S63.496 represents a traumatic rupture of other ligaments of the right little finger at the metacarpophalangeal and interphalangeal joint, functioning as an active terminology record with no narrower child concepts. 1

In the ICD-10-CM hierarchy, this specific diagnosis is a child of the parent concept S63.49, which broadly covers traumatic rupture of other ligaments of a finger at the metacarpophalangeal and interphalangeal joint. 1

Coding details

Within the S63.4 coding category, S63.496 is distinct from adjacent codes that specify unspecified, collateral, or palmar ligament ruptures of the right little finger at the same anatomical joints. 4

The official terminology record includes a published abbreviation for this diagnosis, which is traumatic rupture of ligament of the right little finger at the MCP and IP joint. 1

Clinical context

Finger joints are highly susceptible to traumatic injury, and collateral ligament ruptures specifically result from a radially or ulnarly directed force applied to the distal finger causing rapid digital deviation. 2

Documentation considerations

Clinical evaluation of a potential ligamentous rupture involves palpating the joint line to assess maximal tenderness and checking for a mobile mass or fullness that may indicate a tendinous or ligamentous tear. 2

What the sources add

While the official terminology record defines the exact code and hierarchy for this right little finger injury, the clinical literature provides operational context regarding the physical mechanisms and evaluation of finger ligament ruptures. 1 2

The official code directory lists S63.496 alongside other specific right little finger ligament rupture codes, demonstrating that the terminology distinguishes between unspecified, collateral, palmar, and other ligament types. 4

Sources

1. ICD-10-CM S63.496 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Jam Injuries of the Finger — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
4. Coding: ICD-10-CM Section S60-S69 — medicalcodecenter.com; accessed 2026-07-27.