S82.101C Unspecified fracture of upper end of right tibia, initial encounter for open fracture type IIIA, IIIB, or IIIC

ICD-10-CM S82.101C: Unspecified fracture of upper end of right tibia, initial encounter for open fracture type IIIA, IIIB, or IIIC

ICD-10-CM code S82.101C identifies an unspecified fracture of the upper end of the right tibia during an initial encounter for an open fracture type IIIA, IIIB, or IIIC. The terminology is active and falls under the broader parent code S82.101 for unspecified right tibial fractures. 1 3

Plain-language overview

This diagnosis code represents an unspecified fracture of the upper end of the right tibia, captured during an initial encounter for an open fracture classified as type IIIA, IIIB, or IIIC. 1

What this code represents

The official label for S82.101C is unspecified fracture of upper end of right tibia, initial encounter for open fracture type IIIA, IIIB, or IIIC, and its semantic type is Injury or Poisoning. 1

S82.101C is an active terminology concept that has narrower child concepts and is hierarchically linked to the parent concept S82.101 for unspecified fracture of upper end of right tibia. 1

Coding details

An official abbreviation for this diagnosis is unsp fx upper end of r tibia, init for opn fx type 3A/B/C, reflecting its specific laterality and encounter details. 1

Documentation considerations

The official terminology for this code explicitly includes the right tibia, the upper end location, the initial encounter, and the severe open fracture classification of type IIIA, IIIB, or IIIC. 1

Coverage and utilization context

The S82.101C diagnosis code appears within Medicare billing and coding articles for total knee arthroplasty, which list the code alongside S82.101D for unspecified fractures of the upper end of the right tibia. 2 3

What the sources add

While the terminology authority establishes the code definition and hierarchy, payer articles list S82.101C alongside S82.101D, providing operational context within total knee arthroplasty billing documents. 1 3

A payer reference document independently lists the exact code S82.101C and its full official description within a broader compilation of ICD-10 codes and definitions. 4

Sources

1. ICD-10-CM S82.101C terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Article - Billing and Coding: Total Knee Arthroplasty (A57685) — cms.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Total Knee Arthroplasty (A57686) — cms.gov; accessed 2026-07-27.
4. ICD-10 Codes and Definitions — bcbsnd.com; accessed 2026-07-27.