Diseases of the circulatory system (I00-I99)
Excludes 2:
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.-)
Other and unspecified disorders of the circulatory system (I95-I99)
I95
Hypotension [+]
Excludes 1:
cardiovascular collapse (R57.9) maternal hypotension syndrome (O26.5-) nonspecific low blood pressure reading NOS (R03.1)
I95.0
Idiopathic hypotension
I95.1
Orthostatic hypotension Hypotension, postural
Excludes 1:
neurogenic orthostatic hypotension [Shy-Drager] (G90.3) orthostatic hypotension due to drugs (I95.2)
I95.2
Hypotension due to drugs Orthostatic hypotension due to drugs
Use additional
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
I95.3
Hypotension of hemodialysis Intra-dialytic hypotension
I95.8
Other hypotension [+]
I95.81
Postprocedural hypotension
I95.89
Other hypotension Chronic hypotension
I95.9
Hypotension, unspecified
I96
Gangrene, not elsewhere classified Gangrenous cellulitis
Excludes 1:
gangrene in atherosclerosis of native arteries of the extremities (I70.26) gangrene in hernia (K40.1, K40.4, K41.1, K41.4, K42.1, K43.1-, K44.1, K45.1, K46.1) gangrene in other peripheral vascular diseases (I73.-) gangrene of certain specified sites - see Alphabetical Index gas gangrene (A48.0) pyoderma gangrenosum (L88)
Excludes 2:
gangrene in diabetes mellitus (E08-E13 with .52)
I97
Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified [+]
Excludes 2:
postprocedural shock (T81.1-)
I97.0
Postcardiotomy syndrome
I97.1
Other postprocedural cardiac functional disturbances [+]
Excludes 2:
acute pulmonary insufficiency following thoracic surgery (J95.1) intraoperative cardiac functional disturbances (I97.7-)
I97.11
Postprocedural cardiac insufficiency [+]
I97.110
Postprocedural cardiac insufficiency following cardiac surgery
I97.111
Postprocedural cardiac insufficiency following other surgery
I97.12
Postprocedural cardiac arrest [+]
I97.120
Postprocedural cardiac arrest following cardiac surgery
I97.121
Postprocedural cardiac arrest following other surgery
I97.13
Postprocedural heart failure [+]
Use additional
code to identify the heart failure (I50.-)
I97.130
Postprocedural heart failure following cardiac surgery
I97.131
Postprocedural heart failure following other surgery
I97.19
Other postprocedural cardiac functional disturbances [+]
Use additional
code, if applicable, to further specify disorder
I97.190
Other postprocedural cardiac functional disturbances following cardiac surgery
Use additional
code, if applicable, for type 4 or type 5 myocardial infarction, to further specify disorder
I97.191
Other postprocedural cardiac functional disturbances following other surgery
I97.2
Postmastectomy lymphedema syndrome Elephantiasis due to mastectomy Obliteration of lymphatic vessels
I97.3
Postprocedural hypertension
I97.4
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a procedure [+]
Excludes 1:
intraoperative hemorrhage and hematoma of a circulatory system organ or structure due to accidental puncture and laceration during a procedure (I97.5-)
Excludes 2:
intraoperative cerebrovascular hemorrhage complicating a procedure (G97.3-)
I97.41
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a circulatory system procedure [+]
I97.410
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a cardiac catheterization
I97.411
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a cardiac bypass
I97.418
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating other circulatory system procedure
I97.42
Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating other procedure
I97.5
Accidental puncture and laceration of a circulatory system organ or structure during a procedure [+]
Excludes 2:
accidental puncture and laceration of brain during a procedure (G97.4-)
I97.51
Accidental puncture and laceration of a circulatory system organ or structure during a circulatory system procedure
I97.52
Accidental puncture and laceration of a circulatory system organ or structure during other procedure
I97.6
Postprocedural hemorrhage, hematoma and seroma of a circulatory system organ or structure following a procedure [+]
Excludes 2:
postprocedural cerebrovascular hemorrhage complicating a procedure (G97.5-)
I97.61
Postprocedural hemorrhage of a circulatory system organ or structure following a circulatory system procedure [+]
I97.610
Postprocedural hemorrhage of a circulatory system organ or structure following a cardiac catheterization
I97.611
Postprocedural hemorrhage of a circulatory system organ or structure following cardiac bypass
I97.618
Postprocedural hemorrhage of a circulatory system organ or structure following other circulatory system procedure
I97.62
Postprocedural hemorrhage, hematoma and seroma of a circulatory system organ or structure following other procedure [+]
I97.620
Postprocedural hemorrhage of a circulatory system organ or structure following other procedure
I97.621
Postprocedural hematoma of a circulatory system organ or structure following other procedure
I97.622
Postprocedural seroma of a circulatory system organ or structure following other procedure
I97.63
Postprocedural hematoma of a circulatory system organ or structure following a circulatory system procedure [+]
I97.630
Postprocedural hematoma of a circulatory system organ or structure following a cardiac catheterization
I97.631
Postprocedural hematoma of a circulatory system organ or structure following cardiac bypass
I97.638
Postprocedural hematoma of a circulatory system organ or structure following other circulatory system procedure
I97.64
Postprocedural seroma of a circulatory system organ or structure following a circulatory system procedure [+]
I97.640
Postprocedural seroma of a circulatory system organ or structure following a cardiac catheterization
I97.641
Postprocedural seroma of a circulatory system organ or structure following cardiac bypass
I97.648
Postprocedural seroma of a circulatory system organ or structure following other circulatory system procedure
I97.7
Intraoperative cardiac functional disturbances [+]
Excludes 2:
acute pulmonary insufficiency following thoracic surgery (J95.1) postprocedural cardiac functional disturbances (I97.1-)
I97.71
Intraoperative cardiac arrest [+]
I97.710
Intraoperative cardiac arrest during cardiac surgery
I97.711
Intraoperative cardiac arrest during other surgery
I97.79
Other intraoperative cardiac functional disturbances [+]
Use additional
code, if applicable, to further specify disorder
I97.790
Other intraoperative cardiac functional disturbances during cardiac surgery
I97.791
Other intraoperative cardiac functional disturbances during other surgery
I97.8
Other intraoperative and postprocedural complications and disorders of the circulatory system, not elsewhere classified [+]
Use additional
code, if applicable, to further specify disorder
I97.81
Intraoperative cerebrovascular infarction [+]
I97.810
Intraoperative cerebrovascular infarction during cardiac surgery
I97.811
Intraoperative cerebrovascular infarction during other surgery
I97.82
Postprocedural cerebrovascular infarction [+]
I97.820
Postprocedural cerebrovascular infarction following cardiac surgery
I97.821
Postprocedural cerebrovascular infarction following other surgery
I97.88
Other intraoperative complications of the circulatory system, not elsewhere classified
I97.89
Other postprocedural complications and disorders of the circulatory system, not elsewhere classified
I99
Other and unspecified disorders of circulatory system [+]
I99.8
Other disorder of circulatory system
I99.9
Unspecified disorder of circulatory system
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Medicare policy changes frequently so links to the source documents have been provided within the document for your reference.
The ICD-10 Diagnosis Codes are based on the latest diagnosis coding files (2021 ICD-10-CM and 2018 GEMs ).
The ICD-10 Procedure Codes are based on the latest procedure coding files (2021 ICD-10-PCS and 2018 GEMs ).