S52.04
Fracture of coronoid process of ulna
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
7th character 16
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
Instructional notes 7
S52code
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
S52.0code
Inclusion terms
- Fracture of proximal end of ulna
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 5 same parent — S52.0
S52.00 Unspecified fracture of upper end of ulna category S52.01 Torus fracture of upper end of ulna category S52.02 Fracture of olecran pro w/o intraarticular extension of ulna category S52.03 Fracture of olecran pro w intraarticular extension of ulna category S52.09 Other fracture of upper end of ulna category
Subordinate codes 6
S52.041 Displaced fracture of coronoid process of right ulna S52.042 Displaced fracture of coronoid process of left ulna S52.043 Displaced fracture of coronoid process of unspecified ulna S52.044 Nondisplaced fracture of coronoid process of right ulna S52.045 Nondisplaced fracture of coronoid process of left ulna S52.046 Nondisp fx of coronoid process of unspecified ulna
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.