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 only1,433 results
- I87.093Postthrombotic syndrome with other complications of bilateral lower extremity
- I87.099Postthrombotic syndrome with other complications of unspecified lower extremity
- I87.1Compression of vein
- I87.2Venous insufficiency (chronic) (peripheral)
- I87.301Chronic venous hypertension (idiopathic) without complications of right lower extremity
- I87.302Chronic venous hypertension (idiopathic) without complications of left lower extremity
- I87.303Chronic venous hypertension (idiopathic) without complications of bilateral lower extremity
- I87.309Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity
- I87.311Chronic venous hypertension (idiopathic) with ulcer of right lower extremity
- I87.312Chronic venous hypertension (idiopathic) with ulcer of left lower extremity
- I87.313Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity
- I87.319Chronic venous hypertension (idiopathic) with ulcer of unspecified lower extremity
- I87.321Chronic venous hypertension (idiopathic) with inflammation of right lower extremity
- I87.322Chronic venous hypertension (idiopathic) with inflammation of left lower extremity
- I87.323Chronic venous hypertension (idiopathic) with inflammation of bilateral lower extremity
- I87.329Chronic venous hypertension (idiopathic) with inflammation of unspecified lower extremity
- I87.331Chronic venous hypertension (idiopathic) with ulcer and inflammation of right lower extremity
- I87.332Chronic venous hypertension (idiopathic) with ulcer and inflammation of left lower extremity
- I87.333Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity
- I87.339Chronic venous hypertension (idiopathic) with ulcer and inflammation of unspecified lower extremity
- I87.391Chronic venous hypertension (idiopathic) with other complications of right lower extremity
- I87.392Chronic venous hypertension (idiopathic) with other complications of left lower extremity
- I87.393Chronic venous hypertension (idiopathic) with other complications of bilateral lower extremity
- I87.399Chronic venous hypertension (idiopathic) with other complications of unspecified lower extremity
- I87.8Other specified disorders of veins
- I87.9Disorder of vein, unspecified
- I88.0Nonspecific mesenteric lymphadenitis
- I88.1Chronic lymphadenitis, except mesenteric
- I88.8Other nonspecific lymphadenitis
- I88.9Nonspecific lymphadenitis, unspecified
- I89.0Lymphedema, not elsewhere classified
- I89.1Lymphangitis
- I89.8Other specified noninfective disorders of lymphatic vessels and lymph nodes
- I89.9Noninfective disorder of lymphatic vessels and lymph nodes, unspecified
- I95.0Idiopathic hypotension
- I95.1Orthostatic hypotension
- I95.2Hypotension due to drugs
- I95.3Hypotension of hemodialysis
- I95.81Postprocedural hypotension
- I95.89Other hypotension
- I95.9Hypotension, unspecified
- I96Gangrene, not elsewhere classified
- I97.0Postcardiotomy syndrome
- I97.110Postprocedural cardiac insufficiency following cardiac surgery
- I97.111Postprocedural cardiac insufficiency following other surgery
- I97.120Postprocedural cardiac arrest following cardiac surgery
- I97.121Postprocedural cardiac arrest following other surgery
- I97.130Postprocedural heart failure following cardiac surgery
- I97.131Postprocedural heart failure following other surgery
- I97.190Other postprocedural cardiac functional disturbances following cardiac surgery