S43.91 Sprain of unspecified parts of right shoulder girdle

ICD-10-CM Code S43.91: Sprain of unspecified parts of right shoulder girdle

ICD-10-CM code S43.91 represents a sprain of unspecified parts of the right shoulder girdle. This diagnostic code identifies an injury to the right shoulder area without specifying the exact anatomical structures involved. The code is listed within the ICD-10-CM section for shoulder girdle sprains, which distinguishes right, left, and unspecified laterality. 3 5

Plain-language overview

Code S43.91 denotes a sprain of unspecified parts of the right shoulder girdle, providing a way to classify a right-sided shoulder injury when the specific affected structures are not identified. 5

What this code represents

The S43.91 designation is part of the ICD-10-CM Version 2026 system and specifically denotes a sprain of unspecified parts of the right shoulder girdle. 3

Coding details

Within the S43 category, S43.9 covers sprains of unspecified parts of the shoulder girdle, and S43.91 is distinguished from S43.90 and S43.92 by identifying the right side rather than the left or unspecified side. 5

The broader S43 category includes distinct codes for shoulder girdle dislocations and subluxations, such as S43.301 for right shoulder girdle subluxation and S43.304 for right shoulder girdle dislocation. 5

Documentation considerations

The code S43.91 explicitly identifies the right shoulder girdle, and the broader category contains separate codes for sprains of other specified parts of the right shoulder girdle, such as S43.81. 5

Coverage and utilization context

A Centers for Medicare and Medicaid Services article on tendon, ligament, and tunnel syndrome injections lists right shoulder girdle sprain codes, including S43.81XS for subsequent encounters and S43.82XA for left initial encounters. 2 4

What the sources add

The National Center for Biotechnology Information provides clinical context for shoulder complaints, noting that management emphasizes targeted physical therapy to strengthen the shoulder girdle and optimize biomechanics. 1

While the CMS article lists specific shoulder girdle sprain codes like S43.81XS within a billing context for injections, the NCBI source discusses shoulder girdle management through physical therapy and pharmacologic strategies. 1 2 4

Questions to verify

The supplied sources establish the code label and surrounding category structure for S43.91, but they do not specify the exact clinical documentation elements needed to select this unspecified code over a more specified right shoulder girdle sprain code. 3 5

Sources

1. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Article - Billing and Coding: Injections - Tendon, Ligament, Ganglion Cyst, Tunnel Syndromes and Morton's Neuroma (A57079) — cms.gov; accessed 2026-07-25.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-25.
4. Article - Billing and Coding: Injections - Tendon, Ligament, Ganglion Cyst, Tunnel Syndromes and Morton's Neuroma (A57079) — cms.gov; accessed 2026-07-25.
5. Coding: ICD-10-CM Section S40-S49 — medicalcodecenter.com; accessed 2026-07-25.