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Diseases of the circulatory system I00-I99 Diseases of the circulatory system I00-I99 Type 2 Excludes Codes I00-I02  Acute rheumatic fever I05-I09  Chronic rheumatic heart diseases I10-I1A  Hypertensive diseases I20-I25  Ischemic heart diseases I26-I28  Pulmonary heart disease and diseases of pulmonary circulation I30-I5A  Other forms of heart disease I60-I69  Cerebrovascular diseases I70-I79  Diseases of arteries, arterioles and capillaries I80-I89  Diseases of veins, lymphatic vessels and lymph … Read more

H60-H95 Diseases of the ear and mastoid process  Note Type 2 Excludes Codes H60-H62  Diseases of external ear H65-H75  Diseases of middle ear and mastoid H80-H83  Diseases of inner ear H90-H94  Other disorders of ear H95-H95  Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified

H00-H59 Diseases of the eye and adnexa Note Type 2 Excludes Codes H00-H05  Disorders of eyelid, lacrimal system and orbit H10-H11  Disorders of conjunctiva H15-H22  Disorders of sclera, cornea, iris and ciliary body H25-H28  Disorders of lens H30-H36  Disorders of choroid and retina H40-H42  Glaucoma H43-H44  Disorders of vitreous body and globe H46-H47  Disorders of optic nerve and visual pathways H49-H52  Disorders of ocular … Read more

G00-G99 Diseases of the nervous system  Type 2 Excludes Codes G00-G09  Inflammatory diseases of the central nervous system G10-G14 Systemic atrophies primarily affecting the central nervous system G20-G26  Extrapyramidal and movement disorders G30-G32  Other degenerative diseases of the nervous system G35-G37  Demyelinating diseases of the central nervous system G40-G47  Episodic and paroxysmal disorders G50-G59  Nerve, nerve root and plexus disorders G60-G65  Polyneuropathies … Read more

F01-F99 Mental, Behavioral and Neurodevelopmental disorders  Type 2 Excludes Includes Codes F01-F09  Mental disorders due to known physiological conditions F10-F19  Mental and behavioral disorders due to psychoactive substance use F20-F29  Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders F30-F39  Mood [affective] disorders F40-F48  Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders F50-F59  Behavioral syndromes associated with physiological disturbances and physical … Read more

Note Type 1 Excludes Codes E00-E07Disorders of thyroid gland E08-E13Diabetes mellitus E15-E16 Other disorders of glucose regulation and pancreatic internal secretion E20-E35Disorders of other endocrine glands E36-E36Intraoperative complications of endocrine system E40-E46Malnutrition E50-E64Other nutritional deficiencies E65-E68Overweight, obesity and other hyperalimentation E70-E88Metabolic disorders E89-E89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified

D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism Type 2 Excludes Codes D50-D53  Nutritional anemias D55-D59  Hemolytic anemias D60-D64  Aplastic and other anemias and other bone marrow failure syndromes D65-D69  Coagulation defects, purpura and other hemorrhagic conditions D70-D77  Other disorders of blood and blood-forming organs D78-D78  Intraoperative and postprocedural complications of the spleen D80-D89  Certain … Read more

Neoplasms C00-D49 Neoplasms C00-D49 Note Codes C00-C14  Malignant neoplasms of lip, oral cavity and pharynx C15-C26 Malignant neoplasms of digestive organs C30-C39  Malignant neoplasms of respiratory and intrathoracic organs C40-C41 Malignant neoplasms of bone and articular cartilage C43-C44  Melanoma and other malignant neoplasms of skin C45-C49  Malignant neoplasms of mesothelial and soft tissue C50-C50  Malignant neoplasms of breast C51-C58  Malignant neoplasms of female genital … Read more

Certain infectious and parasitic diseases A00-B99 Certain infectious and parasitic diseases A00-B99 Use Additional Type 1 Excludes Type 2 Excludes Includes Codes A00-A09  Intestinal infectious diseases A15-A19  Tuberculosis A20-A28  Certain zoonotic bacterial diseases A30-A49  Other bacterial diseases A50-A64  Infections with a predominantly sexual mode of transmission A65-A69  Other spirochetal diseases A70-A74  Other diseases caused by chlamydiae A75-A79  Rickettsioses A80-A89  Viral and prion infections of the … Read more

Principal diagnosis invalid as discharge diagnosis Principal diagnosis invalid as discharge diagnosis O09.00 Supervision of pregnancy with history of infertility, unspecified trimester O09.01 Supervision of pregnancy with history of infertility, first trimester O09.02 Supervision of pregnancy with history of infertility, second trimester O09.03 Supervision of pregnancy with history of infertility, third trimester O09.10 Supervision of pregnancy with history of ectopic … Read more