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ICD-10-CM 2027 diagnosis code

S32.4Fracture of acetabulum

Not billable — use a more specific codeRequires 7th character

S32.4 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S32.4

S32.4 is the ICD-10-CM diagnosis code for fracture of acetabulum. It belongs to category S32 (fracture of lumbar spine and pelvis), block S30-S39 (injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

Within S32 (fracture of lumbar spine and pelvis), S32.4 is specifically for fracture of acetabulum. Related codes cover lumbar vertebra (S32.0), sacrum (S32.1), coccyx (S32.2), ilium (S32.3), pubis (S32.5), ischium (S32.6), other parts of pelvis (S32.8) and unspecified parts of lumbosacral spine and pelvis (S32.9).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

Code first: any associated spinal cord and spinal nerve injury (S34.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S32

  • Ainitial encounter for closed fracture
  • Binitial encounter for open fracture
  • Dsubsequent encounter for fracture with routine healing
  • Gsubsequent encounter for fracture with delayed healing
  • Ksubsequent encounter for fracture with nonunion
  • Ssequela

Coding notes

Code alsoTwo codes may be needed; sequencing depends on circumstances
  • any associated fracture of pelvic ring (S32.8-)

Notes that apply from higher levels

Instructions written at a parent level also apply to S32.4.

› From S32 Fracture of lumbar spine and pelvis
Note
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as opened or closed should be coded to closed
Includes
  • fracture of lumbosacral neural arch
  • fracture of lumbosacral spinous process
  • fracture of lumbosacral transverse process
  • fracture of lumbosacral vertebra
  • fracture of lumbosacral vertebral arch
Excludes1
  • transection of abdomen (S38.3)
Excludes2
Code first
  • any associated spinal cord and spinal nerve injury (S34.-)

Broader instructions also apply from S30-S39 Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Codes whose notes reference S32.4

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S32.4

Is S32.4 billable?

No. S32.4 is a header code. Report one of its more specific subcodes instead.