Chapter IX of ICD-10 is titled “Diseases of the circulatory system”. It spans codes I00–I99, in 10 blocks.
What Chapter IX excludes
Conditions that look similar but belong under another code.
- certain conditions originating in the perinatal period P00-P96
- certain infectious and parasitic diseases A00-B99
- complications of pregnancy, childbirth and the puerperium O00-O99
- congenital malformations, deformations and chromosomal abnormalities Q00-Q99
- endocrine, nutritional and metabolic diseases E00-E90
- injury, poisoning and certain other consequences of external causes S00-T98
- neoplasms C00-D48
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified R00-R99
- systemic connective tissue disorders M30-M36
- transient cerebral ischaemic attacks and related syndromes G45.-
Blocks in Chapter IX
- I00–I02Acute rheumatic fever3 categories
- I05–I09Chronic rheumatic heart diseases5 categories
- I10–I15Hypertensive diseases5 categories
- I20–I25Ischaemic heart diseases6 categories
- I26–I28Pulmonary heart disease and diseases of pulmonary circulation3 categories
- I30–I52Other forms of heart disease23 categories
- I60–I69Cerebrovascular diseases10 categories
- I70–I79Diseases of arteries, arterioles and capillaries8 categories
- I80–I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified9 categories
- I95–I99Other and unspecified disorders of the circulatory system4 categories
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free