S52.123R — Displaced fracture of head of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S52.123R is a billable, specific ICD-10-CM code for displaced fracture of head of unspecified radius, subsequent encounter for open fracture type iiia, iiib, or iiic with malunion. It is valid for submission on a claim.
7th character "R" — subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
The appropriate 7th character is to be added to all codes from category S52
- A
- initial encounter for closed fracture
- B
- initial encounter for open fracture type I or II
- C
- initial encounter for open fracture type IIIA, IIIB, or IIIC
- D
- subsequent encounter for closed fracture with routine healing
- E
- subsequent encounter for open fracture type I or II with routine healing
- F
- subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- G
- subsequent encounter for closed fracture with delayed healing
- H
- subsequent encounter for open fracture type I or II with delayed healing
- J
- subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
- K
- subsequent encounter for closed fracture with nonunion
- M
- subsequent encounter for open fracture type I or II with nonunion
- N
- subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
- P
- subsequent encounter for closed fracture with malunion
- Q
- subsequent encounter for open fracture type I or II with malunion
- R
- subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
- S
- sequela
Excludes1 inherited from the categories above S52.123R
These are not written on S52.123R, but they bind it: a note on a category applies to every code beneath it. Billing S52.123R with anything listed here is a denial.
Excludes2 inherited from the categories above S52.123R
Also inherited, and the opposite of Excludes1: these conditions are not part of S52.123R, but a patient can have both, so you may code both.
Written on S52.1 — Fracture of upper end of radius
Other codes that can never be billed with S52.123R
These codes carry an Excludes1 note pointing at S52.123R. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S52.123R alone.
Risk adjustment
S52.123R does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
S52.123R is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53065Billing and Coding: Outpatient Physical Therapy
Code history
S52.123R has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share S52.123. If S52.123R is not quite right, the correct code is usually one of these.
- S52.123ADisplaced fracture of head of unspecified radius, initial encounter for closed fracture
- S52.123BDisplaced fracture of head of unspecified radius, initial encounter for open fracture type I or II
- S52.123CDisplaced fracture of head of unspecified radius, initial encounter for open fracture type IIIA, IIIB, or IIIC
- S52.123DDisplaced fracture of head of unspecified radius, subsequent encounter for closed fracture with routine healing
- S52.123EDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type I or II with routine healing
- S52.123FDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S52.123GDisplaced fracture of head of unspecified radius, subsequent encounter for closed fracture with delayed healing
- S52.123HDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type I or II with delayed healing
- S52.123JDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
- S52.123KDisplaced fracture of head of unspecified radius, subsequent encounter for closed fracture with nonunion
- S52.123MDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type I or II with nonunion
- S52.123NDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
- S52.123PDisplaced fracture of head of unspecified radius, subsequent encounter for closed fracture with malunion
- S52.123QDisplaced fracture of head of unspecified radius, subsequent encounter for open fracture type I or II with malunion
- S52.123SDisplaced fracture of head of unspecified radius, sequela
Questions about S52.123R
- Is S52.123R a billable ICD-10-CM code?
- Yes. S52.123R is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S52.123R sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the elbow and forearm (S50-S59).
- What cannot be coded together with S52.123R?
- S52.123R carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S52.123R (S52) and apply to it just the same.