S52.266
⚠ Non-billable (Header)Nondisplaced segmental fracture of shaft of ulna, unspecified arm
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 S52.266
Child Codes (16)
S52.266ANondisplaced segmental fracture of shaft of ulna, unspecified arm, initial encounter for closed fractureS52.266BNondisplaced segmental fracture of shaft of ulna, unspecified arm, initial encounter for open fracture type I or IIS52.266CNondisplaced segmental fracture of shaft of ulna, unspecified arm, initial encounter for open fracture type IIIA, IIIB, or IIICS52.266DNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for closed fracture with routine healingS52.266ENondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with routine healingS52.266FNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS52.266GNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for closed fracture with delayed healingS52.266HNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with delayed healingS52.266JNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS52.266KNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for closed fracture with nonunionS52.266MNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with nonunionS52.266NNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS52.266PNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for closed fracture with malunionS52.266QNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type I or II with malunionS52.266RNondisplaced segmental fracture of shaft of ulna, unspecified arm, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionS52.266SNondisplaced segmental fracture of shaft of ulna, unspecified arm, sequela
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CodeS52.266
BillableNo — Header code
ParentS52.26
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)