2026 ICD-10-CM Diagnosis Code S33.30XADislocation of unspecified parts of lumbar spine and pelvis, initial encounter

ICD-10-CM Codes›S00–T88›S30-S39›S33

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

S33.30XA is a billable ICD-10-CM diagnosis code for dislocation of unspecified parts of lumbar spine and pelvis, 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Dislocations, initial encounter.

Code Identity

ICD-10-CM Code
S33.30XA
Billable Status
Yes — Valid for Submission
Code Describes
Dislocation of unspecified parts of lumbar spine and pelvis, initial encounter
Short Description
Dislocation of unsp parts of lumbar spine and pelvis, init
Parent Code
S33.30
Dislocation of unspecified parts of lumbar spine and pelvis

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 CodeS33.30XADislocation of unspecified parts of lumbar spine and pelvis, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Closed fracture dislocation of pelvis
  • Closed fracture subluxation of pelvis
  • Closed traumatic dislocation of pelvis
  • Closed traumatic subluxation of pelvis
  • Dislocations, sprains and strains involving multiple body regions
  • Dislocations, sprains and strains involving thorax with lower back and pelvis
  • Dislocations/sprains/strains
  • Open fracture dislocation of pelvis
  • Open fracture subluxation of pelvis
  • Open traumatic dislocation of pelvis
  • Open traumatic subluxation of pelvis
  • Traumatic dislocation of lumbosacral joint
  • Traumatic dislocation of pelvis

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

Dislocations

Dislocations are joint injuries that force the ends of your bones out of position. The cause is often a fall or a blow, sometimes from playing a contact sport. You can dislocate your ankles, knees, shoulders, hips, elbows and jaw. You can also dislocate your finger and toe joints.

Read the full article at MedlinePlus

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

Convert S33.30XA to ICD-9-CMHistory

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

ICD-9-CM
839.69 Dislocat site NEC-closed
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 S33.30XAOverview

Is S33.30XA (Dislocation of unspecified parts of lumbar spine and pelvis) a billable code?

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

What does the 7th character A in S33.30XA mean?

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

What MS-DRG does S33.30XA group to?

When dislocation of unspecified parts of lumbar spine and pelvis, 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 S33.30XA?

Under the General Equivalence Mappings, dislocation of unspecified parts of lumbar spine and pelvis, initial encounter converts to ICD-9-CM 839.69 (dislocat site NEC-closed). 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.