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S33

S33Dislocation and sprain of joints and ligaments of lumbar spine and pelvis

Non-billable headerICD-10-CM

S33 is a non-billable header ICD-10-CM code for dislocation and sprain of joints and ligaments of lumbar spine and pelvis. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

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

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • any associated open wound

Includes

Conditions this code covers.

  • 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

Other codes that can never be billed with S33

These codes carry an Excludes1 note pointing at S33. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S33 alone.

Risk adjustment

S33 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead S33

9 child codes. Green means billable.

Questions about S33

Is S33 a billable ICD-10-CM code?
No. S33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S33 sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).
What cannot be coded together with S33?
S33 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.