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S49.041K vs S49.042K

S49.041K (Salter-Harris Type IV physeal fracture of upper end of humerus, right arm, subsequent encounter for fracture with nonunion) compared with S49.042K (Salter-Harris Type IV physeal fracture of upper end of humerus, left arm, subsequent encounter for fracture with nonunion), from the official CMS tabular data. S49.041K and S49.042K code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S49.041K
Right
Salter-Harris Type IV physeal fracture of upper end of humerus, right arm, subsequent encounter for fracture with nonunion
S49.042K
Left
Salter-Harris Type IV physeal fracture of upper end of humerus, left arm, subsequent encounter for fracture with nonunion

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S49.041K and S49.042K name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S49.041KSalter-Harris Type IV physeal fracture of upper end of humerus, right arm, subsequent encounter for fracture with nonunionS49.042KSalter-Harris Type IV physeal fracture of upper end of humerus, left arm, subsequent encounter for fracture with nonunion
Billing statusBillableBillable
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionSalter-Harris Type IV physeal fracture of upper end of humerus, right arm, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (S49.041K).Salter-Harris Type IV physeal fracture of upper end of humerus, left arm, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (S49.042K).
7th characterThe appropriate 7th character is to be added to each code from subcategories S49.0 and S49.1The appropriate 7th character is to be added to each code from subcategories S49.0 and S49.1
Includes
injuries of axilla
injuries of scapular region
injuries of axilla
injuries of scapular region

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources