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W44.C0XD vs Y09

W44.C0XD (Glass unspecified, entering into or through a natural orifice, subsequent encounter) compared with Y09 (Assault by unspecified means), 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. W44.C0XD carries an Excludes1 note covering Y09: “assault (X92-Y09)”

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

W44.C0XDGlass unspecified, entering into or through a natural orifice, subsequent encounterY09Assault by unspecified means
Billing statusBillableBillable
ClassificationV00-Y99 — External Causes of Morbidity (V00-Y99)V00-Y99 — External Causes of Morbidity (V00-Y99)
DefinitionGlass unspecified, entering into or through a natural orifice, subsequent encounter is a billable ICD-10-CM diagnosis code (W44.C0D).Assault by unspecified means is a billable ICD-10-CM diagnosis code (Y09).
7th characterThe appropriate 7th character is to be added to each code from category W44
Includes
homicide
injuries inflicted by another person with intent to injure or kill, by any means
Assassination (attempted) NOS
Homicide (attempted) NOS

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