Chapter IX
Diseases of the circulatory system
(I00-I99)

Other and unspecified disorders of the circulatory system
(I95-I99)

I95 Hypotension
Excludes: 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: neurogenic orthostatic hypotension [Shy-Drager] ( G90.3)
I95.2 Hypotension due to drugs
Use additional external cause code (Chapter XX), if desired, to identify drug.
#I95.3 Neural-mediated hypotension
I95.8 Other hypotension
Chronic hypotension
I95.9 Hypotension, unspecified

I97 Postprocedural disorders of circulatory system, not elsewhere classified
Excludes: postoperative shock ( T81.1 )
I97.0 Postcardiotomy syndrome
I97.1 Other functional disturbances following cardiac surgery
Cardiac insufficiency
Heart failure
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following cardiac surgery or due to presence of cardiac prosthesis
I97.2 Postmastectomy lymphoedema syndrome
Elephantiasis
Obliteration of lymphatic vessels
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due to mastectomy
I97.8 Other postprocedural disorders of circulatory system, not elsewhere classified
I97.9 Postprocedural disorder of circulatory system, unspecified

I98* Other disorders of circulatory system in diseases classified elsewhere
Excludes: disorders classified to other asterisk categories within this chapter
I98.0* Cardiovascular syphilis
Cardiovascular syphilis:
· NOS ( A52.0+ )
· congenital, late ( A50.5+ )
I98.1* Cardiovascular disorders in other infectious and parasitic diseases classified elsewhere
Cardiovascular:
· involvement NEC, in Chagas' disease (chronic) ( B57.2+ )
· lesions of pinta [carate] ( A67.2+ )
I98.2* Oesophageal varices in diseases classified elsewhere
Oesophageal varices in:
· liver disorders ( K70-K71+ , K74.-+ )
· schistosomiasis ( B65.-+ )
I98.8* Other specified disorders of circulatory system in diseases classified elsewhere

I99 Other and unspecified disorders of circulatory system