S33.10 – Subluxation and dislocation of unspecified lumbar vertebra

ICD-10-CM 2027 diagnosis code · Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals

Non-billable header

ICD-10-CM code S33.10

Code: S33.10 (claims format: S3310)
Description: Subluxation and dislocation of unspecified lumbar vertebra
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: S30-S39 Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
Parent codes: S33 › S33.1

Billable codes under S33.10

S33.10 is a header code and cannot be used on claims. Choose the most specific code:

S33.100 – Subluxation of unspecified lumbar vertebraHeader (more codes below)
S33.101 – Dislocation of unspecified lumbar vertebraHeader (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

S33 – Dislocation and sprain of joints and ligaments of lumbar spine and pelvis

Includes:

avulsion of joint or ligament of lumbar spine and pelvis
laceration of cartilage, joint or ligament of lumbar spine and pelvis
sprain of cartilage, joint or ligament of lumbar spine and pelvis
traumatic hemarthrosis of joint or ligament of lumbar spine and pelvis
traumatic rupture of joint or ligament of lumbar spine and pelvis
traumatic subluxation of joint or ligament of lumbar spine and pelvis
traumatic tear of joint or ligament of lumbar spine and pelvis

Excludes1 (not coded here):

nontraumatic rupture or displacement of lumbar intervertebral disc NOS (M51.-)
obstetric damage to pelvic joints and ligaments (O71.6)

Excludes2 (not included here):

dislocation and sprain of joints and ligaments of hip (S73.-)
strain of muscle of lower back and pelvis (S39.01-)

Code also:

any associated open wound

7th character note:

The appropriate 7th character is to be added to each code from category S33

S33.1 – Subluxation and dislocation of lumbar vertebra

Excludes2 (not included here):

fracture of lumbar vertebrae (S32.0-)

Code also:

any associated:
open wound of abdomen, lower back and pelvis (S31)
spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)

Block S30-S39

Includes:

injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia
injuries to the flank
injuries to the groin

Excludes2 (not included here):

burns and corrosions (T20-T32)
effects of foreign body in anus and rectum (T18.5)
effects of foreign body in genitourinary tract (T19.-)
effects of foreign body in stomach, small intestine and colon (T18.2-T18.4)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

Related codes in S33.1

Frequently asked questions

What is ICD-10 code S33.10?

S33.10 is the ICD-10-CM code for subluxation and dislocation of unspecified lumbar vertebra, in the block S30-S39 (Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals).

Is S33.10 a billable code?

No. S33.10 is a header code with more specific child codes; report one of the billable codes listed above.

What category does S33.10 belong to?

It belongs to category S33 – Dislocation and sprain of joints and ligaments of lumbar spine and pelvis.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.