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ICD-10-CM · FY 2026 APRIL UPDATE

S42.3

Fracture of shaft of humerus

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
S42.30Unspecified fracture of shaft of humerusCategory
S42.301Unspecified fracture of shaft of humerus, right armCategory
S42.301AUnspecified fracture of shaft of humerus, right arm, initial encounter for closed fractureBillable
S42.301BUnspecified fracture of shaft of humerus, right arm, initial encounter for open fractureBillable
S42.301DUnspecified fracture of shaft of humerus, right arm, subsequent encounter for fracture with routine healingBillable
S42.301GUnspecified fracture of shaft of humerus, right arm, subsequent encounter for fracture with delayed healingBillable
S42.301KUnspecified fracture of shaft of humerus, right arm, subsequent encounter for fracture with nonunionBillable
S42.301PUnspecified fracture of shaft of humerus, right arm, subsequent encounter for fracture with malunionBillable
S42.301SUnspecified fracture of shaft of humerus, right arm, sequelaBillable
S42.302Unspecified fracture of shaft of humerus, left armCategory
S42.302AUnspecified fracture of shaft of humerus, left arm, initial encounter for closed fractureBillable
S42.302BUnspecified fracture of shaft of humerus, left arm, initial encounter for open fractureBillable
S42.302DUnspecified fracture of shaft of humerus, left arm, subsequent encounter for fracture with routine healingBillable
S42.302GUnspecified fracture of shaft of humerus, left arm, subsequent encounter for fracture with delayed healingBillable
S42.302KUnspecified fracture of shaft of humerus, left arm, subsequent encounter for fracture with nonunionBillable
S42.302PUnspecified fracture of shaft of humerus, left arm, subsequent encounter for fracture with malunionBillable
S42.302SUnspecified fracture of shaft of humerus, left arm, sequelaBillable
S42.309Unspecified fracture of shaft of humerus, unspecified armCategory
S42.309AUnspecified fracture of shaft of humerus, unspecified arm, initial encounter for closed fractureBillable
S42.309BUnspecified fracture of shaft of humerus, unspecified arm, initial encounter for open fractureBillable
S42.309DUnspecified fracture of shaft of humerus, unspecified arm, subsequent encounter for fracture with routine healingBillable
S42.309GUnspecified fracture of shaft of humerus, unspecified arm, subsequent encounter for fracture with delayed healingBillable
S42.309KUnspecified fracture of shaft of humerus, unspecified arm, subsequent encounter for fracture with nonunionBillable
S42.309PUnspecified fracture of shaft of humerus, unspecified arm, subsequent encounter for fracture with malunionBillable
S42.309SUnspecified fracture of shaft of humerus, unspecified arm, sequelaBillable
S42.31Greenstick fracture of shaft of humerusCategory
S42.311Greenstick fracture of shaft of humerus, right armCategory
S42.311AGreenstick fracture of shaft of humerus, right arm, initial encounter for closed fractureBillable
S42.311DGreenstick fracture of shaft of humerus, right arm, subsequent encounter for fracture with routine healingBillable
S42.311GGreenstick fracture of shaft of humerus, right arm, subsequent encounter for fracture with delayed healingBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.