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W44.B9XA vs W45

W44.B9XA (Other plastic object entering into or through a natural orifice, initial encounter) compared with W45 (Foreign body or object entering through skin), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Relationship

Informational

Excludes2 relationship

W44.B9XA
Other plastic object entering into or through a natural orifice, initial encounter
W45
Foreign body or object entering through skin

Distinct conditions — both may be reported.

“foreign body or object entering through skin (W45)”

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source: CMS ICD-10-CM tabular instructional notes

Can these codes be reported together?

Yes, when both are documented. W44.B9XA carries an Excludes2 note covering W45: “foreign body or object entering through skin (W45)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

W44.B9XAOther plastic object entering into or through a natural orifice, initial encounterW45Foreign body or object entering through skin
Billing statusBillableNon-billable header

Report instead: W45.0XXA, W45.0XXD, W45.0XXS, W45.3XXA, W45.3XXD

ClassificationV00-Y99 — External Causes of Morbidity (V00-Y99)V00-Y99 — External Causes of Morbidity (V00-Y99)
DefinitionOther plastic object entering into or through a natural orifice, initial encounter is a billable ICD-10-CM diagnosis code (W44.B9A).Foreign body or object entering through skin is a non-billable ICD-10-CM category code (W45).
7th characterThe appropriate 7th character is to be added to each code from category W44The appropriate 7th character is to be added to each code from category W45
Includes
foreign body or object embedded in skin
nail embedded in skin

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