2026 ICD-10-CM Diagnosis Code S33.4XXATraumatic rupture of symphysis pubis, initial encounter

ICD-10-CM Codes›S00–T88›S30-S39›S33

ICD-10-CM S33.4XXA
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S33.4XXA is a billable ICD-10-CM diagnosis code for traumatic rupture of symphysis pubis, 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 537 through 538, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Dislocations, initial encounter.

Code Identity

ICD-10-CM Code
S33.4XXA
Billable Status
Yes — Valid for Submission
Code Describes
Traumatic rupture of symphysis pubis, initial encounter
Short Description
Traumatic rupture of symphysis pubis, initial encounter
Same as the full description in the CMS dataset.
Parent Code
S33.4
Traumatic rupture of symphysis pubis

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
CategoryS33Dislocation and sprain of joints and ligaments of lumbar spine and pelvis
This CodeS33.4XXATraumatic rupture of symphysis pubis, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Closed complete rupture pubic symphysis
  • Closed traumatic dislocation of pelvis
  • Complete disruption of pelvic ring
  • Complete tear, symphysis pubis ligament
  • Dislocation of symphysis pubis
  • Dislocation of symphysis pubis in pregnancy
  • Fracture dislocation of symphysis pubis
  • Fracture subluxation of symphysis pubis
  • Open complete rupture pubic symphysis
  • Subluxation of symphysis pubis
  • Symphysiolysis
  • Traumatic pubic symphysis separation
  • Traumatic rupture of symphysis pubis
  • Traumatic rupture of symphysis pubis without disruption of pelvic ring

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments of lumbar spine and pelvis (S33). 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

Fractures

A fracture is a break in a bone. Fractures are usually caused by injuries. Since they can sometimes be serious, it's important to get medical care right away if you think you have a fracture.

The full article covers:

  • What is a fracture?
  • What are the different types of fractures?
  • What causes fractures?
  • What are the symptoms of a fracture?
  • How are fractures diagnosed?
  • What are the treatments for fractures?
  • Can fractures be prevented?

Read the full article at MedlinePlus

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

Convert S33.4XXA to ICD-9-CMHistory

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

ICD-9-CM
848.5 Sprain of pelvis
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 S33.4XXAOverview

Is S33.4XXA (Traumatic rupture of symphysis pubis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report traumatic rupture of symphysis pubis, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S33.4XXA mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for traumatic rupture of symphysis pubis, such as an emergency visit or first evaluation.

What MS-DRG does S33.4XXA group to?

When traumatic rupture of symphysis pubis, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 537, 538, 963, 964, 965, with relative weights from 0.7203 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S33.4XXA?

Under the General Equivalence Mappings, traumatic rupture of symphysis pubis, initial encounter converts to ICD-9-CM 848.5 (sprain of pelvis). 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.