Table 1.

ICD-9-CM Anesthesia-Related Complication Codes^a

ICD-9-CM code	Complication
Systemic Complications
668	Complications of the administration of anesthesia in labor and delivery
668.0	Pulmonary complications  Inhalation (aspiration) of stomach contents or secretions after anesthesia or other sedation   in labor and delivery
	Mendelson syndrome after anesthesia or other sedation in labor and delivery
	Pressure collapse of lung after anesthesia or other sedation in labor or delivery
668.1	Cardiac complications
668.2	Central nervous system complications
668.8	Other complications of anesthesia or other sedation in labor and delivery
668.9	Unspecified complication of anesthesia or other sedation
	Spinal complications
349.0	Reaction to spinal or lumbar puncture  Headache after lumbar puncture
324.1	Intraspinal abscess—epidural, extradural, and subdural
3.95b	Spinal blood patch
	Overdose complications
968.1	Poisoning by halothane
968.2	Poisoning by other gaseous anesthetics: ether, halogenated hydrocarbon derivatives, except   halothane, nitrous oxide
968.3	Poisoning by IV anesthetics: ketamine, methohexital (methohexitone), thiobarbiturates, such as   thiopental sodium
968.4	Poisoning by other and unspecified general anesthetics
968.7	Poisoning by spinal anesthetics
E855.1	Accidental poisoning by other central nervous system depressants: ether, gaseous anesthetics,   halogenated hydrocarbon derivatives, IV anesthetics, thiobarbiturates, such as   thiopental sodium
	Adverse effects
E938.1–E938.9	Adverse effects by other central nervous system depressants and anesthetics
995.4	Shock due to anesthesia
995.86	Malignant hyperthermia due to anesthesia
995.89	Other specified adverse event not elsewhere classified
E876.3	Endotracheal tube wrongly placed during anesthetic procedure

^aAvailable at: http://www.cgmh.org.tw/chldhos/intr/c4a00/academy/icd9/1tabular.html. Accessed June 15, 2008.

^bICD-9 procedure code.