S22.23XA Sternal manubrial dissociation, initial encounter for closed fracture

ICD-10-CM Diagnosis Code S22.23XA: Sternal Manubrial Dissociation, Initial Encounter for Closed Fracture

ICD-10-CM code S22.23XA is an active diagnosis concept representing sternal manubrial dissociation during an initial encounter for a closed fracture. Classified under the parent category S22.23, this injury concept appears in official terminology records and multiple billing articles. 1 2 4

Plain-language overview

Code S22.23XA is an active terminology concept with the semantic type of Injury or Poisoning, identified by its official label as sternal manubrial dissociation, initial encounter for closed fracture. 1

What this code represents

The official display label for S22.23XA is sternal manubrial dissociation, initial encounter for closed fracture, and it has a published abbreviation of sternal manubrial dissociation, init for clos fx. 1

S22.23XA is a child concept of the parent code S22.23, which represents sternal manubrial dissociation in the ICD-10-CM terminology hierarchy, and the record indicates it has narrower concepts. 1 4

Coding details

S22.23XA is distinguished from sibling code S22.23XB, which represents the initial encounter for an open fracture of the same condition, indicating different encounter circumstances. 2 3

An additional related code, S22.23XD, represents a subsequent encounter for fracture with routine healing, demonstrating how the coding system tracks different phases of care. 5

Documentation considerations

The official terminology record establishes the exact code label as sternal manubrial dissociation, initial encounter for closed fracture, providing the specific text elements that align with this diagnosis. 1

Coverage and utilization context

The S22.23XA code appears in Medicare billing and coding articles for electrocardiograms and computerized axial tomography of the thorax alongside related sternal manubrial dissociation codes. 2 3

What the sources add

While the terminology record defines the clinical concept and hierarchy, the Medicare billing articles place the code within specific billing contexts for electrocardiograms and thorax services. 1 2 3

A third-party coding reference identifies S22.23XA as a valid code for reimbursement and lists it as a sibling to S22.23XD, which is designated for subsequent encounters with routine healing. 5

Sources

1. ICD-10-CM S22.23XA terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Article - Billing and Coding: Electrocardiograms (A57327) — cms.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Computerized Axial Tomography (CT), Thorax (A56580) — cms.gov; accessed 2026-07-27.
4. Browse Code Systems — vsac.nlm.nih.gov; accessed 2026-07-27.
5. S22.23XD — Sternal manubrial dissociation, subsequent encounter for fracture with routine healing | ICD-10 Code · Eleplan — eleplan.com; accessed 2026-07-27.