Skip to content

S52.122N ICD-10-CM Code: Displaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

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)

S52.122N

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

Displaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Displaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

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
S52.12Fracture of head of radius
S52.122Displaced fracture of head of left radius
S52.122NDisplaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for S52.122N in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for S52.122N in this effective period.

Related Child Codes

Official
S52.122ADisplaced fracture of head of left radius, initial encounter for closed fracture
S52.122BDisplaced fracture of head of left radius, initial encounter for open fracture type I or II
S52.122CDisplaced fracture of head of left radius, initial encounter for open fracture type IIIA, IIIB, or IIIC
S52.122DDisplaced fracture of head of left radius, subsequent encounter for closed fracture with routine healing
S52.122EDisplaced fracture of head of left radius, subsequent encounter for open fracture type I or II with routine healing

Includes

Official

ICD-10-CM does not list Includes notes for S52.122N in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for S52.122N in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for S52.122N in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for S52.122N in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for S52.122N 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 S52.122N an HCC code?

No. S52.122N 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

S52.122N is the ICD-10-CM diagnosis code for displaced fracture of head of left radius, subsequent encounter for open fracture type iiia, iiib, or iiic with nonunion. S52.122N 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).

S52.122N 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.

S52.122N 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 S52.122N 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 S52.122N sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Child Codes

S52.122ADisplaced fracture of head of left radius, initial encounter for closed fracture
S52.122BDisplaced fracture of head of left radius, initial encounter for open fracture type I or II
S52.122CDisplaced fracture of head of left radius, initial encounter for open fracture type IIIA, IIIB, or IIIC
S52.122DDisplaced fracture of head of left radius, subsequent encounter for closed fracture with routine healing
S52.122EDisplaced fracture of head of left radius, subsequent encounter for open fracture type I or II with routine healing
S52.122FDisplaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
S52.122GDisplaced fracture of head of left radius, subsequent encounter for closed fracture with delayed healing
S52.122HDisplaced fracture of head of left radius, subsequent encounter for open fracture type I or II with delayed healing
S52.122JDisplaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
S52.122KDisplaced fracture of head of left radius, subsequent encounter for closed fracture with nonunion
S52.122MDisplaced fracture of head of left radius, subsequent encounter for open fracture type I or II with nonunion
S52.122NDisplaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
S52.122PDisplaced fracture of head of left radius, subsequent encounter for closed fracture with malunion
S52.122QDisplaced fracture of head of left radius, subsequent encounter for open fracture type I or II with malunion
S52.122RDisplaced fracture of head of left radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S52.122SDisplaced fracture of head of left radius, sequela

Code Hierarchy

Open S52.122N 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.