Chapter 9: Diseases of the circulatory system (I00-I99)

ICD-10-CM 2027 chapter 9 contains 10 code blocks with 1,433 billable codes.

Code blocks

Block	Title	Billable
`I00-I02`	Acute rheumatic fever	8
`I05-I09`	Chronic rheumatic heart diseases	27
`I10-I1A`	Hypertensive diseases	18
`I20-I25`	Ischemic heart diseases	94
`I26-I28`	Pulmonary heart disease and diseases of pulmonary circulation	33
`I30-I5A`	Other forms of heart disease	146
`I60-I69`	Cerebrovascular diseases	410
`I70-I79`	Diseases of arteries, arterioles and capillaries	344
`I80-I89`	Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified	304
`I95-I99`	Other and unspecified disorders of the circulatory system	49

Excludes2 (not included here):

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
transient cerebral ischemic attacks and related syndromes (G45.-)