ICD-9 Codes

ICD-9 Coding Overview
ICD-9 codes are used to describe a patient's diagnosis including symptoms, diseases or disorders.

001-139: Infectious and Parasitic Diseases
Infectious and Parasitic Diseases

140-239: Neoplasms
Neoplasms

240-279: Endocrine, Nutritional and Metabolic Diseases, and Immunity Disorders
Endocrine, Nutritional and Metabolic Diseases, and Immunity Disorders

280-289: Diseases of the Blood and Blood-Forming Organs
Diseases of the Blood and Blood-Forming Organs

290-319: Mental Disorders
Mental Disorders

320-359: Diseases of the Nervous System
Diseases of the Nervous System

360-389: Diseases of the Sense Organs
Diseases of the Sense Organs

390-459: Diseases of the Circulatory System
Diseases of the Circulatory System

460-519: Diseases of the Respiratory System
Diseases of the Respiratory System

520-579: Diseases of the Digestive System
Diseases of the Digestive System

580-629: Diseases of the Genitourinary System
Diseases of the Genitourianary System

630-679: Complications of Pregnancy, Childbirth and the Puerperium
Complications of Pregnancy, Childbirth and the Puerperium

680-709: Diseases of the Skin and Subcutaneous Tissue
Diseases of the Skin and Subcutaneous Tissue

710-739: Diseases of the Musculoskeletal System and Connective Tissue
Diseases of the Musculoskeletal System and Connective Tissue

740-759: Congenital Anomalies
Congenital Anomalies

760-779: Certain Conditions Originating in the Perinatal Period
Certain Conditions Originating in the Perinatal Period

780-799: Symptoms, Signs, and Ill-defined Conditions
Symptoms, Signs and Ill-defined Conditions

800-999: Injury and Poisoning
Injury and Poisoning

E Section: External Causes of Injury
External Causes of Injury

V Codes: Supplemental Classification
Supplemental Classification