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Primary Diagnosis Categories


Each hospitalization record may contain up to 13 diagnoses. Primary diagnosis refers to the first-listed (main) diagnosis.

Primary Diagnosis Categories

ICD-9-CM Codes

Infectious and parasitic diseases

001-139

Neoplasms

140-239

Endocrine, nutritional and metabolic diseases, and immunity disorders

240-279

Diseases of the blood and blood-forming organs

280-289

Mental disorders

290-319

Diseases of the nervous system and sense organs

320-389

Diseases of the circulatory system

390-459

Diseases of the respiratory system

460-519

Diseases of the digestive system

520-579

Diseases of the genitourinary system

580-629

Complications of pregnancy, childbirth, and puerperium

630-677

Disease of the skin and subcutaneous tissue

680-709

Diseases of the musculoskeletal system and connective tissue

710-739

Congenital anomalies

740-759

Certain conditions originating in the perinatal period

760-779

Symptoms, signs, and ill-defined conditions

780-799

Injury and poisoning*

800-999

Supplementary classifications

V01-V84

Ungroupable

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*The injury and poisoning codes given here and used in the Primary Diagnosis Categories of the Inpatient Hospital Discharge query are Nature of Injury (800-999), not External Cause of Injury (E800-E999), codes. An example of nature of injury would be fracture of femur ("broken hip") or contusion of elbow (bruised elbow). The nature of injury is what happened to the person's body. The corresponding external cause of injury might be fall from a ladder or motor vehicle collision. The external cause of injury is how the injury happened.

The information provided above is from the Department of Health's NJSHAD web site (https://nj.gov/health/shad). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Thu, 14 December 2017 10:15:52 from Department of Health, New Jersey State Health Assessment Data Web site: https://nj.gov/health/shad ".

Content updated: Wed, 15 Nov 2017 07:52:42 EST