S52.616A Nondisplaced fracture of unspecified ulna styloid process, initial encounter for closed fracture
Billable ICD-10-CM code, FY2026.
Built from S52.616 with 7th character A (initial encounter for closed fracture).
Applies from S52 Fracture of forearm
Excludes1 (never code together)
traumatic amputation of forearm (S58.-)
Excludes2 (not included here)
fracture at wrist and hand level (S62.-)
periprosthetic fracture around internal prosthetic elbow joint (M97.4)
7th character note
The appropriate 7th character is to be added to all codes from category S52
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 required
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
Medicare Code Edits (MCE v43.1 (April 2026))
Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.
Code annotations containing back-references to S52.616A
Type 1 Excludes: M84.4 Pathological fracture, not elsewhere classified ("traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)")
Type 1 Excludes: S51 Open wound of elbow and forearm ("open fracture of elbow and forearm (S52.- with open fracture 7th character)")
Type 2 Excludes: S62 Fracture at wrist and hand level ("fracture of distal parts of ulna and radius (S52.-)")
Nearby codes
S52.615P Nondisplaced fracture of left ulna styloid process, subsequent encounter for closed fracture with malunion
S52.615Q Nondisplaced fracture of left ulna styloid process, subsequent encounter for open fracture type I or II with malunion
S52.615R Nondisplaced fracture of left ulna styloid process, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S52.615S Nondisplaced fracture of left ulna styloid process, sequela
S52.616 Nondisplaced fracture of unspecified ulna styloid process
S52.616A Nondisplaced fracture of unspecified ulna styloid process, initial encounter for closed fracture (this code)
S52.616B Nondisplaced fracture of unspecified ulna styloid process, initial encounter for open fracture type I or II
S52.616C Nondisplaced fracture of unspecified ulna styloid process, initial encounter for open fracture type IIIA, IIIB, or IIIC
S52.616D Nondisplaced fracture of unspecified ulna styloid process, subsequent encounter for closed fracture with routine healing
S52.616E Nondisplaced fracture of unspecified ulna styloid process, subsequent encounter for open fracture type I or II with routine healing
S52.616F Nondisplaced fracture of unspecified ulna styloid process, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing