I00–I99: Diseases of the Circulatory System
Chapter 9 of ICD-10-CM 2027, 1,807 codes in 10 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- 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.-)
Codes in this chapter
All codesBillable only1,807 results
- I97.820Postprocedural cerebrovascular infarction following cardiac surgery
- I97.821Postprocedural cerebrovascular infarction following other surgery
- I97.88Other intraoperative complications of the circulatory system, not elsewhere classified
- I97.89Other postprocedural complications and disorders of the circulatory system, not elsewhere classified
- I99Other and unspecified disorders of circulatory system
- I99.8Other disorder of circulatory system
- I99.9Unspecified disorder of circulatory system
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