Criteria for identifying valid injury cases based on the principal diagnosis field
| ICD-9-CM | |
| Nature of injury code | Types of injuries |
| 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 late effects of complications of surgical and medical care or drugs, medicinal or biological substances. |
| 910–994.9 | 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. |
| 995.5–995.59 | Child maltreatment syndrome. |
| 995.80–995.85 | Adult maltreatment, unspecified; adult physical abuse; adult emotional/psychological abuse; adult sexual abuse; adult neglect (nutritional); other adult abuse and neglect. |
| ICD-10-CM | |
|
Nature of injury code
(any seventh character except D - R) | Types of injuries |
| All S codes | Anatomic injuries. |
| T07–T34 | Foreign bodies, burns, corrosions, frostbite. |
| T36–T50 with a sixth character of 1, 2, 3, or 4 (exceptions: T36.9, T37.9, T39.9, T41.4, T42.7, T43.9, T45.9, T47.9, and T49.9 with a fifth character of 1, 2, 3, or 4) | Drug poisoning (excludes adverse effects and underdosing). |
| T51–T65 | Toxic effects of substances non-medicinal as to source. |
| T66–T76 | Other and unspecified effects of external causes (radiation, heat, light, hypo/hyperthermia, asphyxiation, child/adult abuse, lightning, drowning, motion sickness). |
| T79 | Certain early complications of trauma, not elsewhere classified. |
| O9A2–O9A5 | Injury, poisoning, and certain other consequences of external causes; and physical, sexual and psychological abuse complicating pregnancy, childbirth and the puerperium. |
| T8404/M97 | Periprosthetic fracture around internal prosthetic joint. |
ICD-9-CM, Clinical Modification of the 9th Revision of the International Classification of Diseases; ICD-10-CM, Clinical Modification of the 10th Revision of ICD (ICD-10-CM).