Records with injuries are identified by ICD-9-CM diagnosis code using a scheme recommended by the following 2003 report by the State and Territorial Injury Prevention Directors Association (STIPDA).
Injury Surveillance Workgroup. Consensus Recommendations for Using Hospital Discharge Data for Injury Surveillance. Marietta (GA): State and Territorial Injury Prevention Directors Association; 2003 (available online at http://www.safestates.org/associations/5805/files/HospitalDischargeData.pdf). Please note that in 2010, the organizational name "STIPDA" was changed to the "Safe States Alliance."
Two HCUP variables indicate injuries are reported on the record: INJURY is used to indicate at least one injury is reported in the first-listed or later diagnoses; MULTINJURY is used to indicate that more than one injury is reported, regardless of diagnosis position. The table below lists the diagnosis codes in the range 800-999 used to identify injuries:
|ICD-9-CM Diagnosis Codes Used to Identify Injury Discharges
|800-909.2, 909.4, 909.9
||Fractures; dislocations; sprains and strains; intracranial injury; internal injury of thorax, abdomen, and pelvis; open wound of the head, neck, trunk, upper limb, and lower limb; injury to blood vessels; late effects of injury, poisoning, toxic effects, and other external causes, excluding those of complications of surgical and medical care and drugs, medicinal or biological substances.
||Superficial injury; contusion; crushing injury; effects of foreign body entering through orifice; burns; injury to nerves and spinal cord; traumatic complications and unspecified injuries; poisoning and toxic effects of substances; other and unspecified effects of external causes.
||Child maltreatment syndrome.
||Adult maltreatment, unspecified; adult physical abuse; adult emotional/ psychological abuse; adult sexual abuse; adult neglect (nutritional); other adult abuse and neglect.
||Late effect of complications of surgical and medical care and late effects of adverse effects of drug, medicinal, or biological substance.
|995.0-995.4, 995.6-995.7, 995.86, 995.89
||Other anaphylactic shock; angioneurotic edema; unspecified adverse effect of drug, medicinal and biological substance; allergy, unspecified; shock due to anesthesia; anaphylactic shock due to adverse food reaction; malignant hyperpyrexia or hypothermia due to anesthesia.
||Complications of surgical and medical care, not elsewhere classified
For data beginning in the fourth quarter of 2015, the injury flag is stored in the data element I10_INJURY to indicate the implementation of the ICD-10-CM/PCS coding system.