S52.099C – Other fracture of upper end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC
ICD-10-CM 2027 diagnosis code · Injuries to the elbow and forearm
ICD-10-CM code
S52.099C
- Code
S52.099C(claims format:S52099C)- Description
- Other fracture of upper end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC
- Short description
- Oth fx upper end of unsp ulna, init for opn fx type 3A/B/C
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S50-S59 Injuries to the elbow and forearm
- Parent codes
- S52 › S52.0 › S52.09 › S52.099
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
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 |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S52 – Fracture of forearm
Excludes1 (not coded here):
- traumatic amputation of forearm (S58.-)
Excludes2 (not included here):
Notes:
- A fracture not indicated as displaced or nondisplaced should be coded to displaced
- A fracture not indicated as open or closed should be coded to closed
- The open fracture designations are based on the Gustilo open fracture classification
7th character note:
- The appropriate 7th character is to be added to all codes from category S52
S52.0 – Fracture of upper end of ulna
Applicable to:
- Fracture of proximal end of ulna
Block S50-S59
Related codes in S52.099
- S52.099A – Other fracture of upper end of unspecified ulna, initial encounter for closed fractureBillable
- S52.099B – Other fracture of upper end of unspecified ulna, initial encounter for open fracture type I or IIBillable
- S52.099D – Other fracture of upper end of unspecified ulna, subsequent encounter for closed fracture with routine healingBillable
- S52.099E – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type I or II with routine healingBillable
- S52.099F – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingBillable
- S52.099G – Other fracture of upper end of unspecified ulna, subsequent encounter for closed fracture with delayed healingBillable
- S52.099H – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type I or II with delayed healingBillable
- S52.099J – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingBillable
- S52.099K – Other fracture of upper end of unspecified ulna, subsequent encounter for closed fracture with nonunionBillable
- S52.099M – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type I or II with nonunionBillable
- S52.099N – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionBillable
- S52.099P – Other fracture of upper end of unspecified ulna, subsequent encounter for closed fracture with malunionBillable
- S52.099Q – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type I or II with malunionBillable
- S52.099R – Other fracture of upper end of unspecified ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionBillable
- S52.099S – Other fracture of upper end of unspecified ulna, sequelaBillable
Frequently asked questions
What is ICD-10 code S52.099C?
S52.099C is the ICD-10-CM code for other fracture of upper end of unspecified ulna, initial encounter for open fracture type IIIA, IIIB, or IIIC, in the block S50-S59 (Injuries to the elbow and forearm).
Is S52.099C a billable code?
Yes. S52.099C is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does S52.099C belong to?
It belongs to category S52 – Fracture of forearm.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.