S52.399S — Other fracture of shaft of radius, unspecified arm, sequela
S52.399S is a billable, specific ICD-10-CM code for other fracture of shaft of radius, unspecified arm, sequela. It is valid for submission on a claim.
7th character "S" — sequela
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 S52.399S
These are not written on S52.399S, but they bind it: a note on a category applies to every code beneath it. Billing S52.399S with anything listed here is a denial.
Excludes2 inherited from the categories above S52.399S
Also inherited, and the opposite of Excludes1: these conditions are not part of S52.399S, but a patient can have both, so you may code both.
Other codes that can never be billed with S52.399S
These codes carry an Excludes1 note pointing at S52.399S. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S52.399S alone.
Risk adjustment
S52.399S 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.
Code history
S52.399S 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 S52.399. If S52.399S is not quite right, the correct code is usually one of these.
- S52.399AOther fracture of shaft of radius, unspecified arm, initial encounter for closed fracture
- S52.399BOther fracture of shaft of radius, unspecified arm, initial encounter for open fracture type I or II
- S52.399COther fracture of shaft of radius, unspecified arm, initial encounter for open fracture type IIIA, IIIB, or IIIC
- S52.399DOther fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with routine healing
- S52.399EOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with routine healing
- S52.399FOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S52.399GOther fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with delayed healing
- S52.399HOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with delayed healing
- S52.399JOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
- S52.399KOther fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with nonunion
- S52.399MOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with nonunion
- S52.399NOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
- S52.399POther fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with malunion
- S52.399QOther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with malunion
- S52.399ROther fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
Questions about S52.399S
- Is S52.399S a billable ICD-10-CM code?
- Yes. S52.399S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S52.399S 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 S52.399S?
- S52.399S 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 S52.399S (S52) and apply to it just the same.