Table 1 ICD Codes for Conditions leading to Acquired Brain Injury (ABI)Final List of Codes based on Feedback and Studies –Ontario Neurotrauma Foundation ABI Pilot Project

1. Fracture of the skull

S02.0 Skull

S02.1 Base of skull

S02.9 Skull and facial bones

S02.7 Multiple fractures involving skull and facial bones

S02.89 Fractures of other unspecified skull and facial bones

2. Intracranial Injury excluding those with skull fracture

S06.0 Concussion

S06.2 Diffuse brain injury

S06.4 – Epidural Hemorrhage

S06.5 – Traumatic subdural hemorrhage

S06.6 – Traumatic subarachnoid hemorrhage

S06.8 – Other intracranial injuries

S06.1 – Traumatic cerebral edema

S06.3 – Focal brain injury

S06.9 – Intracranial injury unspecified

S09.7 – Multiple injuries of head

S09.8 – Other unspecified injuries of head

S09.9 – Unspecified injury of head

3. Other causes including late effects of injuries poisonings toxic effects & other external causes

T90.2 – Sequelae of fracture of skull and facial bones

T90.5 – Sequelae of intracranial injury

T90.8 - Sequelae of other specified injuries of head

T90.9 – Sequelae of unspecified injury of head

T96 – Sequelae of poisoning by drugs medicaments and biological substances

T97 – Sequelae of toxic effects of substances chiefly nonmedicinal as to source

T98.2 – Sequelae of certain early complications of trauma

II. Non Traumatic Causes

Diagnosis

ICD-10 Code and Description

1. Toxic effects of substances chiefly non-medical as to source

T51– Toxic effect of alcohol

T56 – Toxic effect of metals

T58– Toxic effect of carbon monoxide

2. Complications of surgical & medical care not elsewhere classified

G93.8 Other specified disorders of the brain (including post-radiation encephalopathy)

3. Anoxia

G93.1– Anoxic brain damage (includes all causes of anoxia except those occurring following abortions ectopic pregnancy labour & delivery & newborn)

T75.1– Drowning and nonfatal submersion

T71– Asphyxiation suffocation (by strangulation)

4. Vascular insults

I62.0 – Subdural hemorrhage

(Aneurysm and vascular malformations)

I62.9 – Unspecified intracranial hemorrhage

RVL Needs clarification

Aneurysm I77.0

Malformation Q28.0 –Q28.9

Traumatic aneurysm T14.5

5. Brain Tumours

C71 – Malignant neoplasm of brain

C79.3 – Secondary malignant neoplasm of brain and cerebral meninges

D33.0-D33.3 – Benign neoplasm of brain and other parts of central nervous system

D32.0 – Benign neoplasm of cerebral meninges

D43 – Neoplasm of uncertain or unknown behaviour of brain and central nervous system

C70 – Malignant neoplasm of brain

D43.2 – Neoplasm of brain unspecified

D42.0 - Neoplasm of uncertain or unknown behaviour of cerebral meninges

6. Encephalitis

A81.1– Subacute sclerosing encephalitis

B00.4 – Herpesviral meningoencephalitis

B05.0 – Postmeasles encephalitis

A83.0 – Japanese encephalitis

A83.2 – Eastern equine encephalitis

A86.0 – Unspecified viral encephalitis

G04.0 – Acute Disseminated encephalitis

G04.8 – Other encephalitis myelitis and encephalomyelitis

G04.9 – Encephalitis myelitis and encephalomyelitis unspecified

B01.1 – Varicella encephalitis

B02.0 – Zoster encephalitis

G05. – Encephalitis myelitis and encephalomyelitis in diseases classified elsewhere

7. Metabolic Encephalopathies

E10.0 (Type I) E11.0 (Type II)

E13.0 – Other specified diabetes mellitus with coma

E14.0 – Unspecified diabetes mellitus with coma

E15 – Nondiabetic hypoglycaemic coma

F07.2 – post concussion syndrome

8. Meningitis

G06.0 – intracranial abscess and granuloma

G06.1 – Intraspinal abscess and granuloma G06.2 – Extradural and subdural abscess unspecified

G93.0 – Cerebral cysts

A87 – Viral meningitis

B01.0 – Varicella meningitis

B37.5 – Candidal meningitis

G00 – Bacterial meningitis not elsewhere classified

G01* – Meningitis in bacterial diseases classified elsewhere

G02* – Meningitis in other infectious and parasitic diseases classified elsewhere

G03. – Meningitis due to other and unspecified causes