ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S33 includes dislocations and sprains of joints and ligaments of the lumbar spine and pelvis, covering injuries such as lumbar facet dislocation, sacroiliac joint sprain, and ligamentous strain of the pelvic ring. These ICD-10-CM diagnosis codes are used to document acute traumatic or overuse injuries to ligaments and joints in the lower back and pelvic region, capturing laterality, encounter type, and associated complications when specified. Accurate coding within the ICD-10-CM S33 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM S33: Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis Overview

This group represents dislocations and sprains affecting the joints and supporting ligaments of the lumbar spine and pelvis, including injuries to facet joints, sacroiliac joints, and associated soft tissues. These diagnoses target the musculoskeletal and soft-tissue structures of the lower back and pelvic ring. Accurate coding matters for reimbursement because it captures the injury location and severity that influence payer adjudication and resource use.

When to Use

Use a code from this group when a patient has a documented dislocation or sprain affecting lumbar or pelvic joints or their supporting ligaments. Select the most specific code available to indicate the exact site, laterality, and whether the encounter is initial, subsequent, or for sequela.

ICD-10-CM Codes

57 rows

ICD-10-CM Code	Description
S33.0XXA	Traumatic rupture of lumbar intervertebral disc, initial encounter
S33.0XXD	Traumatic rupture of lumbar intervertebral disc, subsequent encounter
S33.0XXS	Traumatic rupture of lumbar intervertebral disc, sequela
S33.100A	Subluxation of unspecified lumbar vertebra, initial encounter
S33.100D	Subluxation of unspecified lumbar vertebra, subsequent encounter
S33.100S	Subluxation of unspecified lumbar vertebra, sequela
S33.101A	Dislocation of unspecified lumbar vertebra, initial encounter
S33.101D	Dislocation of unspecified lumbar vertebra, subsequent encounter
S33.101S	Dislocation of unspecified lumbar vertebra, sequela
S33.110A	Subluxation of L1/L2 lumbar vertebra, initial encounter
S33.110D	Subluxation of L1/L2 lumbar vertebra, subsequent encounter
S33.110S	Subluxation of L1/L2 lumbar vertebra, sequela
S33.111A	Dislocation of L1/L2 lumbar vertebra, initial encounter
S33.111D	Dislocation of L1/L2 lumbar vertebra, subsequent encounter
S33.111S	Dislocation of L1/L2 lumbar vertebra, sequela
S33.120A	Subluxation of L2/L3 lumbar vertebra, initial encounter
S33.120D	Subluxation of L2/L3 lumbar vertebra, subsequent encounter
S33.120S	Subluxation of L2/L3 lumbar vertebra, sequela
S33.121A	Dislocation of L2/L3 lumbar vertebra, initial encounter
S33.121D	Dislocation of L2/L3 lumbar vertebra, subsequent encounter

Showing 1–20 of 57

DRG Codes

11 rows

DRG Code	Description
537	Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh with CC/MCC
538	Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh without CC/MCC
551	Medical Back Problems with MCC
552	Medical Back Problems without MCC
562	Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh with MCC
563	Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

Typical Clinical Scenarios

A middle-aged construction worker presents to the emergency department after falling from scaffolding and landing on his buttocks with immediate severe lumbar pain and inability to ambulate. Emergency clinicians document acute instability and focal tenderness over the lumbosacral region with imaging suggesting an acute dislocation/subluxation of a lumbar vertebral joint; the encounter is the initial visit for this traumatic injury so an initial encounter code from the group is assigned. Typical codes: S33.110A, S33.130A
An elderly patient with advanced lumbar degenerative disease develops sudden worsening low back pain and radicular symptoms after bending to pick up an object at home; they present to their primary care clinic several weeks later because pain persists despite conservative measures. The visit documents a subacute sprain/strain with ligamentous disruption of a lumbar or lumbosacral joint without new trauma and the clinician assigns a subsequent encounter or sequela code appropriate to ongoing treatment of the ligamentous injury. Typical codes: S33.111D, S33.131D
A young athlete previously treated for a traumatic lumbosacral joint sprain returns months after the event with chronic instability and recurrent pain requiring evaluation for persistent symptoms; the visit is for late effects and management of complications related to the prior dislocation/sprain. The clinician documents sequelae of the earlier injury and assigns a sequela code from the group to capture the late effect. Typical codes: S33.0XXS, S33.1XXS

ICD-10-CM Code For Superficial Injury Of Abdomen, Lower Back, Pelvis And External Genitals: Group Overview

S31-OPEN-WOUND-ABDOMEN-LOWER-BACK-PELVIS-EXTERNAL-GENITALS

ICD-10-CM Code For Open Wound Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

S32-FRACTURE-OF-LUMBAR-SPINE-AND-PELVIS

ICD-10-CM Code For Fracture Of Lumbar Spine And Pelvis: Group Overview

S34-INJURY-OF-LUMBAR-AND-SACRAL-SPINAL-CORD

ICD-10-CM Code For Injury Of Lumbar And Sacral Spinal Cord And Nerves: Group Overview

S35-INJURY-OF-ABDOMINAL-VESSELS

ICD-10-CM Code For Injury Of Blood Vessels At Abdomen Lower Back And Pelvis Level: Group Overview

S36-INJURY-OF-INTRA-ABDOMINAL-ORGANS

ICD-10-CM Code For Injury Of Intra-Abdominal Organs: Group Overview

S37-INJURY-OF-URINARY-AND-PELVIC-ORGANS

ICD-10-CM Code For Injury Of Urinary And Pelvic Organs: Group Overview

S38-CRUSHING-INJURY-AND-TRAUMATIC-AMPUTATION

ICD-10-CM Code For Crushing Injury And Traumatic Amputation Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

S39-OTHER-UNSPECIFIED-ABDOMINAL-PELVIC-INJURIES

ICD-10-CM Code For Other And Unspecified Injuries Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

57 rows

ICD-10-CM Code	Description
S33.0XXA	Traumatic rupture of lumbar intervertebral disc, initial encounter
S33.0XXD	Traumatic rupture of lumbar intervertebral disc, subsequent encounter
S33.0XXS	Traumatic rupture of lumbar intervertebral disc, sequela
S33.100A	Subluxation of unspecified lumbar vertebra, initial encounter
S33.100D	Subluxation of unspecified lumbar vertebra, subsequent encounter
S33.100S	Subluxation of unspecified lumbar vertebra, sequela
S33.101A	Dislocation of unspecified lumbar vertebra, initial encounter
S33.101D	Dislocation of unspecified lumbar vertebra, subsequent encounter
S33.101S	Dislocation of unspecified lumbar vertebra, sequela
S33.110A	Subluxation of L1/L2 lumbar vertebra, initial encounter
S33.110D	Subluxation of L1/L2 lumbar vertebra, subsequent encounter
S33.110S	Subluxation of L1/L2 lumbar vertebra, sequela
S33.111A	Dislocation of L1/L2 lumbar vertebra, initial encounter
S33.111D	Dislocation of L1/L2 lumbar vertebra, subsequent encounter
S33.111S	Dislocation of L1/L2 lumbar vertebra, sequela
S33.120A	Subluxation of L2/L3 lumbar vertebra, initial encounter
S33.120D	Subluxation of L2/L3 lumbar vertebra, subsequent encounter
S33.120S	Subluxation of L2/L3 lumbar vertebra, sequela
S33.121A	Dislocation of L2/L3 lumbar vertebra, initial encounter
S33.121D	Dislocation of L2/L3 lumbar vertebra, subsequent encounter

Showing 1–20 of 57

DRG Codes

11 rows

DRG Code	Description
537	Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh with CC/MCC
538	Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh without CC/MCC
551	Medical Back Problems with MCC
552	Medical Back Problems without MCC
562	Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh with MCC
563	Fracture, Sprain, Strain and Dislocation Except Femur, Hip, Pelvis and Thigh without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

Typical Clinical Scenarios

A middle-aged construction worker presents to the emergency department after falling from scaffolding and landing on his buttocks with immediate severe lumbar pain and inability to ambulate. Emergency clinicians document acute instability and focal tenderness over the lumbosacral region with imaging suggesting an acute dislocation/subluxation of a lumbar vertebral joint; the encounter is the initial visit for this traumatic injury so an initial encounter code from the group is assigned. Typical codes: S33.110A, S33.130A
An elderly patient with advanced lumbar degenerative disease develops sudden worsening low back pain and radicular symptoms after bending to pick up an object at home; they present to their primary care clinic several weeks later because pain persists despite conservative measures. The visit documents a subacute sprain/strain with ligamentous disruption of a lumbar or lumbosacral joint without new trauma and the clinician assigns a subsequent encounter or sequela code appropriate to ongoing treatment of the ligamentous injury. Typical codes: S33.111D, S33.131D
A young athlete previously treated for a traumatic lumbosacral joint sprain returns months after the event with chronic instability and recurrent pain requiring evaluation for persistent symptoms; the visit is for late effects and management of complications related to the prior dislocation/sprain. The clinician documents sequelae of the earlier injury and assigns a sequela code from the group to capture the late effect. Typical codes: S33.0XXS, S33.1XXS

ICD-10-CM Code For Superficial Injury Of Abdomen, Lower Back, Pelvis And External Genitals: Group Overview

S31-OPEN-WOUND-ABDOMEN-LOWER-BACK-PELVIS-EXTERNAL-GENITALS

ICD-10-CM Code For Open Wound Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

S32-FRACTURE-OF-LUMBAR-SPINE-AND-PELVIS

ICD-10-CM Code For Fracture Of Lumbar Spine And Pelvis: Group Overview

S34-INJURY-OF-LUMBAR-AND-SACRAL-SPINAL-CORD

ICD-10-CM Code For Injury Of Lumbar And Sacral Spinal Cord And Nerves: Group Overview

S35-INJURY-OF-ABDOMINAL-VESSELS

ICD-10-CM Code For Injury Of Blood Vessels At Abdomen Lower Back And Pelvis Level: Group Overview

S36-INJURY-OF-INTRA-ABDOMINAL-ORGANS

ICD-10-CM Code For Injury Of Intra-Abdominal Organs: Group Overview

S37-INJURY-OF-URINARY-AND-PELVIC-ORGANS

ICD-10-CM Code For Injury Of Urinary And Pelvic Organs: Group Overview

S38-CRUSHING-INJURY-AND-TRAUMATIC-AMPUTATION

ICD-10-CM Code For Crushing Injury And Traumatic Amputation Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

S39-OTHER-UNSPECIFIED-ABDOMINAL-PELVIC-INJURIES

ICD-10-CM Code For Other And Unspecified Injuries Of Abdomen Lower Back Pelvis And External Genitals: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview

Sign up for ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview policy alerts

ICD-10-CM S33: Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis Overview

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview

Sign up for ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview policy alerts

ICD-10-CM S33: Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview

Sign up for ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview policy alerts

ICD-10-CM S33: Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis Overview

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview

Sign up for ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis: Group Overview policy alerts

ICD-10-CM S33: Dislocation And Sprain Of Joints And Ligaments Of Lumbar Spine And Pelvis Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes in the S33 group indicate a dislocation of a specific lumbar vertebral level?

How does the S33 group distinguish initial encounters, subsequent encounters, and sequelae?

Which S33 codes cover sprains versus traumatic ruptures within the lumbar spine and pelvis?

What related DRGs may be triggered by claims using S33 diagnosis codes?

How should coders document laterality and injury location within the S33 group?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes in the S33 group indicate a dislocation of a specific lumbar vertebral level?

How does the S33 group distinguish initial encounters, subsequent encounters, and sequelae?

Which S33 codes cover sprains versus traumatic ruptures within the lumbar spine and pelvis?

What related DRGs may be triggered by claims using S33 diagnosis codes?

How should coders document laterality and injury location within the S33 group?

References