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ICD-10-CM 2027 diagnosis code

S52.024PNondisplaced fracture of olecranon process without intraarticular extension of right ulna, subsequent encounter for closed fracture with malunion

✓ Billable / specificPOA exemptRequires 7th characterCC — complication/comorbidity

S52.024P is a valid, billable ICD-10-CM code for nondisplaced fracture of olecranon process without intraarticular extension of right ulna, subsequent encounter for closed fracture with malunion. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Nondisp fx of olecran pro w/o intartic extn r ulna, 7thP

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 S52.024P

S52.024P is the ICD-10-CM diagnosis code for nondisplaced fracture of olecranon process without intraarticular extension of right ulna, subsequent encounter for closed fracture with malunion. It belongs to category S52 (fracture of forearm), block S50-S59 (injuries to the elbow and forearm) 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 "P" means subsequent encounter for closed fracture with malunion: use it for encounters after active treatment, while the patient is healing or recovering.

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 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 733.81 (malunion of fracture).

7th character

Psubsequent encounter for closed fracture with malunion

CC/MCC status for this injury by encounter: Neither CC nor MCC for A, D, E, F, G, H, J, S; MCC for B, C; CC for K, M, N, P, Q, R.

Other encounter types for S52.024:

Notes that apply from higher levels

Instructions written at a parent level also apply to S52.024P.

› From S52.0 Fracture of upper end of ulna
Excludes2
  • fracture of elbow NOS (S42.40-)
  • fractures of shaft of ulna (S52.2-)
› From S52 Fracture of forearm
Note
  • A fracture not indicated as displaced or nondisplaced should be coded to displaced
  • A fracture not indicated as open or closed should be coded to closed
  • The open fracture designations are based on the Gustilo open fracture classification
Excludes1
  • traumatic amputation of forearm (S58.-)
Excludes2
  • fracture at wrist and hand level (S62.-)
  • periprosthetic fracture around internal prosthetic elbow joint (M97.4)

Broader instructions also apply from S50-S59 Injuries to the elbow and forearm 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.

ICD-9-CM equivalent

Converter →
  • 733.81Malunion of fractureapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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 S52.024P

Is S52.024P billable?

Yes. S52.024P is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "P" at the end of S52.024P mean?

It is the 7th character for subsequent encounter for closed fracture with malunion. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.

Can S52.024P be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict S52.024P as a principal diagnosis.

Is S52.024P a CC or MCC?

S52.024P is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does S52.024P group to?

S52.024P is used in the MS-DRG v44.0 logic for 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 S52.024P?

The CMS General Equivalence Mappings map S52.024P to ICD-9-CM 733.81.