ICD-10-CM 2027 diagnosis code
S32.415KNondisplaced fracture of anterior wall of left acetabulum, subsequent encounter for fracture with nonunion
S32.415K is a valid, billable ICD-10-CM code for nondisplaced fracture of anterior wall of left acetabulum, subsequent encounter for fracture with nonunion. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Nondisp fx of ant wall of l acetab, subs for fx w nonunion
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 S32.415K
S32.415K is the ICD-10-CM diagnosis code for nondisplaced fracture of anterior wall of left acetabulum, subsequent encounter for fracture with nonunion. 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "K" means subsequent encounter for fracture with nonunion: use it for encounters after active treatment, while the patient is healing or recovering.
Code first: any associated spinal cord and spinal nerve injury (S34.-).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 521 (Hip Replacement with Principal Diagnosis of Hip Fracture with MCC, relative weight 2.8515), DRG 522 (Hip Replacement with Principal Diagnosis of Hip Fracture without MCC, relative weight 2.1158), DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 733.82 (nonunion of fracture).
7th character
Ksubsequent encounter for fracture with nonunion
CC/MCC status for this injury by encounter: MCC for A, B; Neither CC nor MCC for D, G, S; CC for K.
Other encounter types for S32.415:
Notes that apply from higher levels
Instructions written at a parent level also apply to S32.415K.
› From S32.4 Fracture of acetabulum
- any associated fracture of pelvic ring (S32.8-)
› From S32 Fracture of lumbar spine and pelvis
- 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
- fracture of lumbosacral neural arch
- fracture of lumbosacral spinous process
- fracture of lumbosacral transverse process
- fracture of lumbosacral vertebra
- fracture of lumbosacral vertebral arch
- transection of abdomen (S38.3)
- fracture of hip NOS (S72.0-)
- 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.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
ICD-9-CM equivalent
Converter →- 733.82Nonunion of fractureapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S32.415K
Is S32.415K billable?
- Yes. S32.415K is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "K" at the end of S32.415K mean?
- It is the 7th character for subsequent encounter for fracture with nonunion. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.
Can S32.415K be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S32.415K as a principal diagnosis.
Is S32.415K a CC or MCC?
- S32.415K is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does S32.415K group to?
- S32.415K is used in the MS-DRG v44.0 logic for MS-DRG 521 (Hip Replacement with Principal Diagnosis of Hip Fracture with MCC), MS-DRG 522 (Hip Replacement with Principal Diagnosis of Hip Fracture without MCC), MS-DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC), MS-DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC) and MS-DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for S32.415K?
- The CMS General Equivalence Mappings map S32.415K to ICD-9-CM 733.82.