ICD-10-CM Code I51: Complications and ill-defined descriptions of heart disease and Related Diagnosis Codes.


The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions. Healthcare providers report these codes on Medical claims when diagnosing patient care.

Explore ICD-10-CM codes, organized by chapters based on body systems and medical conditions, as outlined in the International Classification of Diseases, Tenth Revision, Clinical Modification.

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A categorized list of ICD-10-CM codes organized by chapters based on body systems or medical conditions, according to the International Classification of Diseases, Tenth Revision, Clinical Modification.

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  • I51 - Complications and ill-defined descriptions of heart disease
    • I51.0 - Cardiac septal defect, acquired
    • I51.1 - Rupture of chordae tendineae, not elsewhere classified
    • I51.2 - Rupture of papillary muscle, not elsewhere classified
    • I51.3 - Intracardiac thrombosis, not elsewhere classified
    • I51.4 - Myocarditis, unspecified
    • I51.5 - Myocardial degeneration
    • I51.7 - Cardiomegaly
    • I51.8 - Other ill-defined heart diseases
      • I51.81 - Takotsubo syndrome
      • I51.89 - Other ill-defined heart diseases
    • I51.9 - Heart disease, unspecified

Note: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes are developed and maintained by the Centers for Disease Control and Prevention (CDC). CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions. All rights are reserved by the respective entities.