Skip to content

S52.281C ICD-10-CM Code: Bent bone of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Injuries to the elbow and forearm (S50-S59)

S52.281C

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Bent bone of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

Bent bone of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

Basket needed

Code Book Path

Official
S52.28Bent bone of ulna
S52.281Bent bone of right ulna
S52.281CBent bone of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for S52.281C in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for S52.281C in this effective period.

Related Child Codes

Official
S52.281ABent bone of right ulna, initial encounter for closed fracture
S52.281BBent bone of right ulna, initial encounter for open fracture type I or II
S52.281DBent bone of right ulna, subsequent encounter for closed fracture with routine healing
S52.281EBent bone of right ulna, subsequent encounter for open fracture type I or II with routine healing
S52.281FBent bone of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing

Includes

Official

ICD-10-CM does not list Includes notes for S52.281C in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for S52.281C in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for S52.281C in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for S52.281C in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for S52.281C in this effective period.

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is S52.281C an HCC code?

No. S52.281C is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

S52.281C is the ICD-10-CM diagnosis code for bent bone of right ulna, initial encounter for open fracture type iiia, iiib, or iiic. S52.281C sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering injuries to the elbow and forearm (s50-s59).

S52.281C is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

S52.281C is a billable ICD-10-CM code that can be reported on claims but does not currently contribute to a Medicare Advantage member's RAF score under any CMS risk adjustment model (V28, V24, ESRD, or RxHCC). Coders reviewing S52.281C should check whether additional documentation would support a more specific child code in the same hierarchy that does map to a payment HCC, capturing the correct specificity is the highest-impact RAF improvement available within accurate coding.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for S52.281C sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Child Codes

S52.281ABent bone of right ulna, initial encounter for closed fracture
S52.281BBent bone of right ulna, initial encounter for open fracture type I or II
S52.281CBent bone of right ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC
S52.281DBent bone of right ulna, subsequent encounter for closed fracture with routine healing
S52.281EBent bone of right ulna, subsequent encounter for open fracture type I or II with routine healing
S52.281FBent bone of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
S52.281GBent bone of right ulna, subsequent encounter for closed fracture with delayed healing
S52.281HBent bone of right ulna, subsequent encounter for open fracture type I or II with delayed healing
S52.281JBent bone of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
S52.281KBent bone of right ulna, subsequent encounter for closed fracture with nonunion
S52.281MBent bone of right ulna, subsequent encounter for open fracture type I or II with nonunion
S52.281NBent bone of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
S52.281PBent bone of right ulna, subsequent encounter for closed fracture with malunion
S52.281QBent bone of right ulna, subsequent encounter for open fracture type I or II with malunion
S52.281RBent bone of right ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S52.281SBent bone of right ulna, sequela

Code Hierarchy

Open S52.281C in the Interactive Encoder

See full code details, coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial. No credit card required.