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S06.81A vs S06.82A

S06.81A (Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown) compared with S06.82A (Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown), from the official CMS tabular data. S06.81A and S06.82A code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S06.81A
Right
Injury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown
↔
S06.82A
Left
Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown

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. S06.81A and S06.82A 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

S06.81AInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknownS06.82AInjury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown
Billing statusNon-billable header

Report instead: S06.81AA, S06.81AD, S06.81AS

Non-billable header

Report instead: S06.82AA, S06.82AD, S06.82AS

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)
DefinitionInjury of right internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown is a non-billable ICD-10-CM category code (S06.81A).Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness status unknown is a non-billable ICD-10-CM category code (S06.82A).
7th characterThe appropriate 7th character is to be added to each code from category S06, except as noted belowThe appropriate 7th character is to be added to each code from category S06, except as noted below
Includes
traumatic brain injury
injuries of ear
injuries of eye
injuries of face [any part]
traumatic brain injury
injuries of ear
injuries of eye
injuries of face [any part]
Use additional code
code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
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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