S52.366 — Nondisplaced segmental fracture of shaft of radius, unspecified arm
S52.366 is a non-billable header ICD-10-CM code for nondisplaced segmental fracture of shaft of radius, unspecified arm. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
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 S52.366
These are not written on S52.366, but they bind it: a note on a category applies to every code beneath it. Billing S52.366 with anything listed here is a denial.
Excludes2 inherited from the categories above S52.366
Also inherited, and the opposite of Excludes1: these conditions are not part of S52.366, but a patient can have both, so you may code both.
Other codes that can never be billed with S52.366
These codes carry an Excludes1 note pointing at S52.366. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S52.366 alone.
Risk adjustment
S52.366 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
S52.366 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead S52.366
16 child codes. Green means billable.
- S52.366ANondisplaced segmental fracture of shaft of radius, unspecified arm, initial encounter for closed fracture
- S52.366BNondisplaced segmental fracture of shaft of radius, unspecified arm, initial encounter for open fracture type I or II
- S52.366CNondisplaced segmental fracture of shaft of radius, unspecified arm, initial encounter for open fracture type IIIA, IIIB, or IIIC
- S52.366DNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with routine healing
- S52.366ENondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with routine healing
- S52.366FNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S52.366GNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with delayed healing
- S52.366HNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with delayed healing
- S52.366JNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
- S52.366KNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with nonunion
- S52.366MNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with nonunion
- S52.366NNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
- S52.366PNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for closed fracture with malunion
- S52.366QNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type I or II with malunion
- S52.366RNondisplaced segmental fracture of shaft of radius, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
- S52.366SNondisplaced segmental fracture of shaft of radius, unspecified arm, sequela
Related codes at this level
Codes that share S52.36. If S52.366 is not quite right, the correct code is usually one of these.
- S52.361Displaced segmental fracture of shaft of radius, right arm
- S52.362Displaced segmental fracture of shaft of radius, left arm
- S52.363Displaced segmental fracture of shaft of radius, unspecified arm
- S52.364Nondisplaced segmental fracture of shaft of radius, right arm
- S52.365Nondisplaced segmental fracture of shaft of radius, left arm
Questions about S52.366
- Is S52.366 a billable ICD-10-CM code?
- No. S52.366 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S52.366 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 S52.366?
- S52.366 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 S52.366 (S52) and apply to it just the same.