Comorbidity	ICD-9-CM Code
Cancer
Buccal cavity and pharynx	140.00 to 149.00
Digestive system	150.00 to 159.00
Respirator system	160.00 to 165.00
Bones and joints	170.00
Soft tissue including heart	171.00
Skin	172.00 to 173.00
Breast	174.00 to 175.00
Kaposi’s sarcoma	176.00
Female genital system	179.00, 180.00 to 184.00
Male genital system	185.00 to 187.00
Urinary system	188.00 to 189.00
Eye and orbit	190.00
Brain and other nervous system	191.00 to 192.00
Endocrine system	164.00, 193.00 to 194.00
Ill-defined	195.00 to 196.00, 199.00, 202.00
Lymphoma	200.00 to 202.00, 202.10, 202.20, 202.80, 202.90
Multiple myeloma	203.00, 203.80
Leukemia	202.40, 203.10, 204.00 to 208.00
Benign neoplasms	210.00 to 229.00
Carcinoma in situ	230.00 to 234.00
Neoplasms of uncertain behavior	235.00 to 238.00
Neoplasms of unspecified nature	239.00
Stroke
Occlusion and stenosis of basilar artery	433.01, 433.10, 433.11, 433.21, 433.31, 433.81, 433.91
Cerebral thrombosis with/without cerebral infarction	434.00, 434.01, 434.11, 434.91
Acute, but ill-defined, cerebrovascular	436.00
Subarachnoid hemorrhage	430.00
Intracerebral hemorrhage	431.00
Asthma
Extrinsic asthma	493.00, 493.01, 493.02
Intrinsic asthma	493.10, 493.11, 493.12
Chronic obstructive asthma	493.20, 493.21, 493.22
Other forms of asthma	493.81, 493.82
Asthma unspecified	493.90, 493.91, 493.92
Liver disease
Acute and subacute necrosis of liver	570.0
Chronic liver disease and cirrhosis	571.0, 571.1, 571.2, 571.3, 571.4, 571.5, 571.6, 571.8, 571.9
Liver abscess	572.0. 572.1, 572.2, 572.3, 572.4, 572.8
Other disorders of liver	573.0, 573.1, 573.2, 573.3, 573.4, 573.5, 573.6, 573.8, 573.9
Arthritis
Psoriatic arthritis	696.0
Diffuse disease of connective tissue	710.0. 710.1. 710.2. 710.3, 710.4, 710.5, 710.8, 710.9
Infectious arthropathies	711.0, 711.1, 711.2, 711.3, 711.4, 711.5, 711.6, 711.7, 711.8, 711.9
Crystal arthropathies	712.1, 712.2, 712.3, 712.8, 712.9
Rheumatoid arthritis	714.0. 714.2, 714.3, 714.4, 714.8, 714.9
Osteoarthritis and allied disorders	715.0, 715.1, 715.2 715.3, 715.8, 715.9
Other/unspecified arthropathies	716.0, 716.1, 716.2, 716.3, 716.5, 716.6, 716.8, 716.9
Obesity
Obesity	278.00
Morbid obesity	278.01
Overweight	278.02
Obesity hypoventilation syndrome	278.03
Spinal disease
Spondylosis	721.0
Intervertebral disc disorder	722.0
Other cervical disorders	723.0
Low back pain	724.0