Wiki Drop Attacks

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Code: G45.9

Code Name: ICD-10 Code for Transient cerebral ischemic attack, unspecified

Block: Episodic and paroxysmal disorders (G40-G47)

Details: Transient cerebral ischemic attack, unspecified

Spasm of cerebral artery
Transient cerebral ischemia NOS


Excludes1: neonatal cerebral ischemia (P91.0)
transient retinal artery occlusion (H34.0-)

Guidelines: Diseases of the nervous system (G00-G99)

Excludes 2: certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

For more details on G45.9 , ICD-10 Code for Transient cerebral ischemic attack, unspecified , visit:


Best answers
Per an online resource:
Drop attack, not further specified, is coded 780.2, syncope and collapse. Drop attack
associated with transient cerebral ischemia is coded 435.9, unspecified transient cerebral
ischemia. (See Coding Clinic, November - December 1985, page 12.)
Hope that helps.