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.
I95.8 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