S52.045
⚠ Non-billable (Header)Nondisplaced fracture of coronoid process of left ulna
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for S52.045
Child Codes (16)
S52.045ANondisplaced fracture of coronoid process of left ulna, initial encounter for closed fractureS52.045BNondisplaced fracture of coronoid process of left ulna, initial encounter for open fracture type I or IIS52.045CNondisplaced fracture of coronoid process of left ulna, initial encounter for open fracture type IIIA, IIIB, or IIICS52.045DNondisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with routine healingS52.045ENondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with routine healingS52.045FNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.045GNondisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with delayed healingS52.045HNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with delayed healingS52.045JNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.045KNondisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with nonunionS52.045MNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with nonunionS52.045NNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.045PNondisplaced fracture of coronoid process of left ulna, subsequent encounter for closed fracture with malunionS52.045QNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type I or II with malunionS52.045RNondisplaced fracture of coronoid process of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionS52.045SNondisplaced fracture of coronoid process of left ulna, sequela
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CodeS52.045
BillableNo — Header code
ParentS52.04
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes16
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)