2026 ICD-10-CM Diagnosis Code S43.306ADislocation of unspecified parts of unspecified shoulder girdle, initial encounter

ICD-10-CM Codes›S00–T88›S40-S49›S43

ICD-10-CM S43.306A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S43.306A is a billable ICD-10-CM diagnosis code for dislocation of unspecified parts of unspecified shoulder girdle, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 562 through 563, 963 through 965. Coders also document this condition as closed fracture dislocation of joint of shoulder girdle. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Dislocations, initial encounter.

Code Identity

ICD-10-CM Code
S43.306A
Billable Status
Yes — Valid for Submission
Code Describes
Dislocation of unspecified parts of unspecified shoulder girdle, initial encounter
Short Description
Dislocation of unsp parts of unsp shoulder girdle, init
Parent Code
S43.306
Dislocation of unspecified parts of unspecified shoulder girdle

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS40-S49Injuries to the shoulder and upper arm
CategoryS43Dislocation and sprain of joints and ligaments of shoulder girdle
This CodeS43.306ADislocation of unspecified parts of unspecified shoulder girdle, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Closed fracture dislocation of joint of shoulder girdle
  • Fracture dislocation of joint of shoulder girdle
  • Multiple open dislocations of arm
  • Open fracture dislocation of joint of shoulder girdle

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments of shoulder girdle (S43). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ007
Dislocations, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Dislocated Shoulder

Your shoulder joint is made up of three bones: your collarbone, your shoulder blade, and your upper arm bone. The top of your upper arm bone is shaped like a ball. This ball fits into a cuplike socket in your shoulder blade. A shoulder dislocation is an injury that happens when the ball pops out of your socket.

The full article covers:

  • What is a dislocated shoulder?
  • What causes a dislocated shoulder?
  • Who is at risk for a dislocated shoulder?
  • What are the symptoms of a dislocated shoulder?
  • How is a dislocated shoulder diagnosed?
  • What are the treatments for a dislocated shoulder?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S43.306A to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
831.09 Disloc shoulder NEC-clos
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S43.306AOverview

Is S43.306A a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dislocation of unspecified parts of unspecified shoulder girdle, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S43.306A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for dislocation of unspecified parts of unspecified shoulder girdle, such as an emergency visit or first evaluation.

What MS-DRG does S43.306A group to?

When dislocation of unspecified parts of unspecified shoulder girdle, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 562, 563, 963, 964, 965, with relative weights from 0.8955 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S43.306A?

Under the General Equivalence Mappings, dislocation of unspecified parts of unspecified shoulder girdle, initial encounter converts to ICD-9-CM 831.09 (disloc shoulder NEC-clos). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.