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V93.24XA vs X32

V93.24XA (Heat exposure on board sailboat, initial encounter) compared with X32 (Exposure to sunlight), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Can these codes be reported together?

No — do not report together. V93.24XA carries an Excludes1 note covering X32: “exposure to sunlight while on board watercraft (X32)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

V93.24XAHeat exposure on board sailboat, initial encounterX32Exposure to sunlight
Billing statusBillableNon-billable header

Report instead: X32.XXXA, X32.XXXD, X32.XXXS

ClassificationV00-Y99 — External Causes of Morbidity (V00-Y99)V00-Y99 — External Causes of Morbidity (V00-Y99)
DefinitionHeat exposure on board sailboat, initial encounter is a billable ICD-10-CM diagnosis code (V93.24A).Exposure to sunlight is a non-billable ICD-10-CM category code (X32).
7th characterThe appropriate 7th character is to be added to each code from category V93The appropriate 7th character is to be added to code X32

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