ICD 10-CM Code Repository

ICD-10 (International Classification of Diseases, 10th Edition) is the global standard for diagnosing and classifying health conditions. Used by healthcare providers, insurance companies, and medical coders, ICD-10 codes ensure accurate documentation, billing, and reporting of diseases, symptoms, and procedures. With a detailed and structured coding system, ICD-10 improves patient care, streamlines medical claims processing, and supports healthcare analytics. Explore the latest ICD-10 codes and updates to stay compliant with industry standards.

2025 ICD-10-CM Codes

Our index below goes entry by entry, group by group as a reference to the most common ICD-10 CM Code Groups encountered in the field. This index also provides context around difficult coding and billing issues that are experienced through the nuanced understanding of these codes and medical situations.

Chapter Categorizations

  • A00-B99

    Certain infectious and parasitic diseases

  • D50-D89

    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

  • E00-E89

    Endocrine, nutritional and metabolic diseases

  • F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

  • G00-G99

    Diseases of the nervous system

  • H00-H59

    Diseases of the eye and adnexa

  • H60-H95

    Diseases of the ear and mastoid process

  • I00-I99

    Diseases of the circulatory system

  • J00-J99

    Diseases of the respiratory system

  • K00-K95

    Diseases of the digestive system

  • L00-L99

    Diseases of the skin and subcutaneous tissue

  • M00-M99

    Diseases of the musculoskeletal system and connective tissue

  • N00-N99

    Diseases of the genitourinary system

  • O00-O9A

    Pregnancy, childbirth and the puerperium

  • P00-P96

    Certain conditions originating in the perinatal period

  • Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

  • R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

  • S00-T88

    Injury, poisoning and certain other consequences of external causes

  • V00-Y99

    External causes of morbidity

  • Z00-Z99

    Factors influencing health status and contact with health services