List of ICD-10 codes

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International Classification of Diseases, Tenth Revision (ICD-10) is a coding system used worldwide to classify diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. Developed by the World Health Organization (WHO), it serves a variety of healthcare-related purposes such as recording morbidity and mortality statistics, reimbursement systems, and automated decision support in medicine. This article provides an overview of the structure and the list of ICD-10 codes.

Structure[edit | edit source]

The ICD-10 is divided into chapters based on the type of disease or condition. Each chapter is further subdivided into blocks of related conditions, which are then broken down into specific codes representing particular diagnoses. Codes within the ICD-10 are denoted by a letter followed by three or more digits, with a decimal point used after the third character in some instances.

List of ICD-10 Codes[edit | edit source]

Below is a simplified list of ICD-10 chapters, highlighting the range of codes and the types of conditions they cover. For a comprehensive list, refer to the official WHO or national health authority publications.

Chapter I: Certain infectious and parasitic diseases (A00-B99)[edit | edit source]

  • A00-A09 - Intestinal infectious diseases
  • B00-B09 - Viral infections characterized by skin and mucous membrane lesions

Chapter II: Neoplasms (C00-D48)[edit | edit source]

  • C00-C14 - Malignant neoplasms of lip, oral cavity, and pharynx
  • D00-D09 - In situ neoplasms

Chapter III: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)[edit | edit source]

  • D50-D53 - Nutritional anemias
  • D80-D89 - Certain disorders involving the immune mechanism

Chapter IV: Endocrine, nutritional and metabolic diseases (E00-E90)[edit | edit source]

Chapter V: Mental and behavioural disorders (F00-F99)[edit | edit source]

  • F00-F09 - Organic, including symptomatic, mental disorders
  • F10-F19 - Mental and behavioural disorders due to psychoactive substance use

Chapter VI: Diseases of the nervous system (G00-G99)[edit | edit source]

  • G00-G09 - Inflammatory diseases of the central nervous system
  • G40-G47 - Episodic and paroxysmal disorders

Chapter VII: Diseases of the eye and adnexa (H00-H59)[edit | edit source]

  • H00-H05 - Disorders of eyelid, lacrimal system and orbit
  • H10-H13 - Disorders of conjunctiva

Chapter VIII: Diseases of the ear and mastoid process (H60-H95)[edit | edit source]

  • H60-H62 - Diseases of external ear
  • H65-H75 - Diseases of middle ear and mastoid

Chapter IX: Diseases of the circulatory system (I00-I99)[edit | edit source]

Chapter X: Diseases of the respiratory system (J00-J99)[edit | edit source]

  • J00-J06 - Acute upper respiratory infections
  • J30-J39 - Other diseases of upper respiratory tract

Chapter XI: Diseases of the digestive system (K00-K93)[edit | edit source]

  • K00-K14 - Diseases of oral cavity, salivary glands and jaws
  • K20-K31 - Diseases of esophagus, stomach and duodenum

Chapter XII: Diseases of the skin and subcutaneous tissue (L00-L99)[edit | edit source]

  • L00-L08 - Infections of the skin and subcutaneous tissue
  • L20-L30 - Dermatitis and eczema

Chapter XIII: Diseases of the musculoskeletal system and connective tissue (M00-M99)[edit | edit source]

Chapter XIV: Diseases of the genitourinary system (N00-N99)[edit | edit source]

Chapter XV: Pregnancy, childbirth and the puerperium (O00-O99)[edit | edit source]

  • O00-O08 - Pregnancy with abortive outcome
  • O10-O16 - Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium

Chapter XVI: Certain conditions originating in the perinatal period (P00-P96)[edit | edit source]

  • P00-P04 - Fetus and newborn affected by maternal factors and by complications of pregnancy, labour, and delivery
  • P50-P61 - Hemorrhagic and hematological disorders of fetus and newborn

Chapter XVII: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)[edit | edit source]

  • Q00-Q07 - Congenital malformations of the nervous system
  • Q10-Q18 - Congenital malformations of eye, ear, face and neck

Chapter XVIII: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)[edit | edit source]

  • R00-R09 - Symptoms and signs involving the circulatory and respiratory systems
  • R10-R19 - Symptoms and signs involving the digestive system and abdomen

Chapter XIX: Injury, poisoning and certain other consequences of external causes (S00-T98)[edit | edit source]

  • S00-S09 - Injuries to the head
  • T36-T50 - Poisoning by drugs, medicaments and biological substances

Chapter XX: External causes of morbidity and mortality (V01-Y98)[edit | edit source]

  • V01-V09 - Pedestrian injured in transport accidents
  • Y10-Y34 - Poisoning by and exposure to noxious substances

Chapter XXI: Factors influencing health status and contact with health services (Z00-Z99)[edit | edit source]

  • Z00-Z13 - Persons encountering health services for examinations
  • Z30-Z39 - Persons encountering health services in circumstances related to reproduction

See Also[edit | edit source]

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Contributors: Prab R. Tumpati, MD