S00.96XA vs S05

S00.96XA (Insect bite (nonvenomous) of unspecified part of head, initial encounter) compared with S05 (Injury of eye and orbit), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

S00.96XA

Insect bite (nonvenomous) of unspecified part of head, initial encounter

↔

S05

Injury of eye and orbit

Not coded here — these two are mutually exclusive.

“injury of eye and orbit (S05.-)”

An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.

Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Can these codes be reported together?

No — do not report together. S00.96XA carries an Excludes1 note covering S05: “injury of eye and orbit (S05.-)”

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

	S00.96XAInsect bite (nonvenomous) of unspecified part of head, initial encounter	S05Injury of eye and orbit
Billing status	Billable	Non-billable header Report instead: S05.00XA, S05.00XD, S05.00XS, S05.01XA, S05.01XD
Classification	S00-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)
Definition	Insect bite (nonvenomous) of unspecified part of head, initial encounter is a billable ICD-10-CM diagnosis code (S00.96A).	Injury of eye and orbit is a non-billable ICD-10-CM category code (S05).
7th character	The appropriate 7th character is to be added to each code from category S00	The appropriate 7th character is to be added to each code from category S05
Includes	injuries of ear injuries of eye injuries of face [any part] injuries of gum	open wound of eye and orbit injuries of ear injuries of eye injuries of face [any part]

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