ICD-10-CM 2027 diagnosis codes
98,403 codes in 22 chapters, 74,879 of them billable. Valid for claims from October 1, 2026.
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New codes for FY2027·Condition guides·Coding rules·Table of Drugs·Neoplasm Table·External Cause Index·ICD-10-PCS procedure codes
A00–B99Certain Infectious and Parasitic DiseasesChapter 1 · 1,309 codes
- A00-A09Intestinal infectious diseases
- A15-A19Tuberculosis
- A20-A28Certain zoonotic bacterial diseases
- A30-A49Other bacterial diseases
- A50-A64Infections with a predominantly sexual mode of transmission
- A65-A69Other spirochetal diseases
- A70-A74Other diseases caused by chlamydiae
- A75-A79Rickettsioses
- A80-A89Viral and prion infections of the central nervous system
- A90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers
- B00-B09Viral infections characterized by skin and mucous membrane lesions
- B15-B19Viral hepatitis
- B25-B34Other viral diseases
- B35-B49Mycoses
- B50-B64Protozoal diseases
- B65-B83Helminthiases
- B85-B89Pediculosis, acariasis and other infestations
- B90-B94Sequelae of infectious and parasitic diseases
- B95-B97Bacterial and viral infectious agents
C00–D49NeoplasmsChapter 2 · 2,181 codes
- C00-C96Malignant neoplasms
- C00-C75Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissue
- C00-C14Malignant neoplasms of lip, oral cavity and pharynx
- C15-C26Malignant neoplasms of digestive organs
- C30-C39Malignant neoplasms of respiratory and intrathoracic organs
- C40-C41Malignant neoplasms of bone and articular cartilage
- C43-C44Melanoma and other malignant neoplasms of skin
- C45-C49Malignant neoplasms of mesothelial and soft tissue
- C51-C58Malignant neoplasms of female genital organs
- C60-C63Malignant neoplasms of male genital organs
- C64-C68Malignant neoplasms of urinary tract
- C69-C72Malignant neoplasms of eye, brain and other parts of central nervous system
- C73-C75Malignant neoplasms of thyroid and other endocrine glands
- C76-C80Malignant neoplasms of ill-defined, other secondary and unspecified sites
- C81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue
- D00-D09In situ neoplasms
- D10-D36Benign neoplasms, except benign neuroendocrine tumors
- D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
D50–D89Diseases of the Blood and Blood-Forming OrgansChapter 3 · 403 codes
- D50-D53Nutritional anemias
- D55-D59Hemolytic anemias
- D60-D64Aplastic and other anemias and other bone marrow failure syndromes
- D65-D69Coagulation defects, purpura and other hemorrhagic conditions
- D70-D77Other disorders of blood and blood-forming organs
- D80-D89Certain disorders involving the immune mechanism
E00–E89Endocrine, Nutritional and Metabolic DiseasesChapter 4 · 1,270 codes
- E00-E07Disorders of thyroid gland
- E08-E13Diabetes mellitus
- E15-E16Other disorders of glucose regulation and pancreatic internal secretion
- E20-E35Disorders of other endocrine glands
- E40-E46Malnutrition
- E50-E64Other nutritional deficiencies
- E65-E68Overweight, obesity and other hyperalimentation
- E70-E88Metabolic disorders
F01–F99Mental, Behavioral and Neurodevelopmental DisordersChapter 5 · 1,113 codes
- F01-F09Mental disorders due to known physiological conditions
- F10-F19Mental and behavioral disorders due to psychoactive substance use
- F20-F29Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
- F30-F39Mood [affective] disorders
- F40-F48Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
- F50-F59Behavioral syndromes associated with physiological disturbances and physical factors
- F60-F69Disorders of adult personality and behavior
- F70-F79Intellectual Disabilities
- F80-F89Pervasive and specific developmental disorders
- F90-F98Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
G00–G99Diseases of the Nervous SystemChapter 6 · 932 codes
- G00-G09Inflammatory diseases of the central nervous system
- G10-G14Systemic atrophies primarily affecting the central nervous system
- G20-G26Extrapyramidal and movement disorders
- G30-G32Other degenerative diseases of the nervous system
- G35-G37Demyelinating diseases of the central nervous system
- G40-G47Episodic and paroxysmal disorders
- G50-G59Nerve, nerve root and plexus disorders
- G60-G65Polyneuropathies and other disorders of the peripheral nervous system
- G70-G73Diseases of myoneural junction and muscle
- G80-G83Cerebral palsy and other paralytic syndromes
- G89-G99Other disorders of the nervous system
H00–H59Diseases of the Eye and AdnexaChapter 7 · 3,466 codes
- H00-H05Disorders of eyelid, lacrimal system and orbit
- H10-H11Disorders of conjunctiva
- H15-H22Disorders of sclera, cornea, iris and ciliary body
- H25-H28Disorders of lens
- H30-H36Disorders of choroid and retina
- H40-H42Glaucoma
- H43-H44Disorders of vitreous body and globe
- H46-H47Disorders of optic nerve and visual pathways
- H49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
- H53-H54Visual disturbances and blindness
- H55-H57Other disorders of eye and adnexa
H60–H95Diseases of the Ear and Mastoid ProcessChapter 8 · 871 codes
I00–I99Diseases of the Circulatory SystemChapter 9 · 1,807 codes
- I00-I02Acute rheumatic fever
- I05-I09Chronic rheumatic heart diseases
- I10-I1AHypertensive diseases
- I20-I25Ischemic heart diseases
- I26-I28Pulmonary heart disease and diseases of pulmonary circulation
- I30-I5AOther forms of heart disease
- I60-I69Cerebrovascular diseases
- I70-I79Diseases of arteries, arterioles and capillaries
- I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
- I95-I99Other and unspecified disorders of the circulatory system
J00–J99Diseases of the Respiratory SystemChapter 10 · 478 codes
- J00-J06Acute upper respiratory infections
- J09-J18Influenza and pneumonia
- J20-J22Other acute lower respiratory infections
- J30-J39Other diseases of upper respiratory tract
- J40-J4BChronic lower respiratory diseases
- J60-J70Lung diseases due to external agents
- J80-J84Other respiratory diseases principally affecting the interstitium
- J85-J86Suppurative and necrotic conditions of the lower respiratory tract
- J90-J94Other diseases of the pleura
- J96-J99Other diseases of the respiratory system
K00–K95Diseases of the Digestive SystemChapter 11 · 1,117 codes
- K00-K14Diseases of oral cavity and salivary glands
- K20-K31Diseases of esophagus, stomach and duodenum
- K35-K38Diseases of appendix
- K40-K46Hernia
- K50-K52Noninfective enteritis and colitis
- K55-K64Other diseases of intestines
- K65-K6ADiseases of peritoneum, retroperitoneum and pelvis
- K70-K77Diseases of liver
- K80-K87Disorders of gallbladder, biliary tract and pancreas
- K90-K95Other diseases of the digestive system
L00–L99Diseases of the Skin and Subcutaneous TissueChapter 12 · 1,207 codes
- L00-L08Infections of the skin and subcutaneous tissue
- L10-L14Bullous disorders
- L20-L30Dermatitis and eczema
- L40-L45Papulosquamous disorders
- L49-L54Urticaria and erythema
- L55-L59Radiation-related disorders of the skin and subcutaneous tissue
- L60-L75Disorders of skin appendages
- L80-L99Other disorders of the skin and subcutaneous tissue
M00–M99Diseases of the Musculoskeletal System and Connective TissueChapter 13 · 8,707 codes
- M00-M25Arthropathies
- M00-M02Infectious arthropathies
- M05-M14Inflammatory polyarthropathies
- M15-M19Osteoarthritis
- M20-M25Other joint disorders
- M26-M27Dentofacial anomalies [including malocclusion] and other disorders of jaw
- M30-M36Systemic connective tissue disorders
- M40-M54Dorsopathies
- M40-M43Deforming dorsopathies
- M45-M49Spondylopathies
- M50-M54Other dorsopathies
- M60-M79Soft tissue disorders
- M60-M63Disorders of muscles
- M65-M67Disorders of synovium and tendon
- M70-M79Other soft tissue disorders
- M80-M94Osteopathies and chondropathies
- M80-M85Disorders of bone density and structure
- M86-M90Other osteopathies
- M91-M94Chondropathies
N00–N99Diseases of the Genitourinary SystemChapter 14 · 1,047 codes
- N00-N08Glomerular diseases
- N10-N16Renal tubulo-interstitial diseases
- N17-N19Acute kidney failure and chronic kidney disease
- N20-N23Urolithiasis
- N25-N29Other disorders of kidney and ureter
- N30-N39Other diseases of the urinary system
- N40-N53Diseases of male genital organs
- N60-N65Disorders of breast
- N70-N77Inflammatory diseases of female pelvic organs
- N80-N98Noninflammatory disorders of female genital tract
O00–O9APregnancy, Childbirth and the PuerperiumChapter 15 · 3,079 codes
- O00-O08Pregnancy with abortive outcome
- O10-O16Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
- O20-O29Other maternal disorders predominantly related to pregnancy
- O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
- O60-O77Complications of labor and delivery
- O80-O82Encounter for delivery
- O85-O92Complications predominantly related to the puerperium
- O94-O9AOther obstetric conditions, not elsewhere classified
P00–P96Certain Conditions Originating in the Perinatal PeriodChapter 16 · 565 codes
- P00-P04Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery
- P05-P08Disorders of newborn related to length of gestation and fetal growth
- P10-P15Birth trauma
- P19-P29Respiratory and cardiovascular disorders specific to the perinatal period
- P35-P39Infections specific to the perinatal period
- P50-P61Hemorrhagic and hematological disorders of newborn
- P70-P74Transitory endocrine and metabolic disorders specific to newborn
- P76-P78Digestive system disorders of newborn
- P80-P83Conditions involving the integument and temperature regulation of newborn
- P90-P96Other disorders originating in the perinatal period
Q00–Q99Congenital Malformations, Deformations and Chromosomal AbnormalitiesChapter 17 · 1,095 codes
- Q00-Q07Congenital malformations of the nervous system
- Q10-Q18Congenital malformations of eye, ear, face and neck
- Q20-Q28Congenital malformations of the circulatory system
- Q30-Q34Congenital malformations of the respiratory system
- Q35-Q37Cleft lip and cleft palate
- Q38-Q45Other congenital malformations of the digestive system
- Q50-Q56Congenital malformations of genital organs
- Q60-Q64Congenital malformations of the urinary system
- Q65-Q79Congenital malformations and deformations of the musculoskeletal system
- Q80-Q89Other congenital malformations
- Q90-Q99Chromosomal abnormalities, not elsewhere classified
- QA0-QA1Genetic disorders, not elsewhere classified
R00–R99Symptoms, Signs and Abnormal Clinical and Laboratory FindingsChapter 18 · 963 codes
- R00-R09Symptoms and signs involving the circulatory and respiratory systems
- R10-R19Symptoms and signs involving the digestive system and abdomen
- R20-R23Symptoms and signs involving the skin and subcutaneous tissue
- R25-R29Symptoms and signs involving the nervous and musculoskeletal systems
- R30-R39Symptoms and signs involving the genitourinary system
- R40-R46Symptoms and signs involving cognition, perception, emotional state and behavior
- R47-R49Symptoms and signs involving speech and voice
- R50-R69General symptoms and signs
- R70-R79Abnormal findings on examination of blood, without diagnosis
- R80-R82Abnormal findings on examination of urine, without diagnosis
- R83-R89Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
- R90-R94Abnormal findings on diagnostic imaging and in function studies, without diagnosis
S00–T88Injury, Poisoning and Certain Other Consequences of External CausesChapter 19 · 54,325 codes
- S00-S09Injuries to the head
- S10-S19Injuries to the neck
- S20-S29Injuries to the thorax
- S30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
- S40-S49Injuries to the shoulder and upper arm
- S50-S59Injuries to the elbow and forearm
- S60-S69Injuries to the wrist, hand and fingers
- S70-S79Injuries to the hip and thigh
- S80-S89Injuries to the knee and lower leg
- S90-S99Injuries to the ankle and foot
- T07-T88Injury, poisoning and certain other consequences of external causes
- T15-T19Effects of foreign body entering through natural orifice
- T20-T32Burns and corrosions
- T20-T25Burns and corrosions of external body surface, specified by site
- T26-T28Burns and corrosions confined to eye and internal organs
- T30-T32Burns and corrosions of multiple and unspecified body regions
- T33-T34Frostbite
- T36-T50Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances
- T51-T65Toxic effects of substances chiefly nonmedicinal as to source
- T66-T78Other and unspecified effects of external causes
- T80-T88Complications of surgical and medical care, not elsewhere classified
V00–Y99External Causes of MorbidityChapter 20 · 10,602 codes
- V00-X58Accidents
- V00-V99Transport accidents
- V00-V09Pedestrian injured in transport accident
- V10-V19Pedal cycle rider injured in transport accident
- V20-V29Motorcycle rider injured in transport accident
- V30-V39Occupant of three-wheeled motor vehicle injured in transport accident
- V40-V49Car occupant injured in transport accident
- V50-V59Occupant of pick-up truck or van injured in transport accident
- V60-V69Occupant of heavy transport vehicle injured in transport accident
- V70-V79Bus occupant injured in transport accident
- V80-V89Other land transport accidents
- V90-V94Water transport accidents
- V95-V97Air and space transport accidents
- V98-V99Other and unspecified transport accidents
- W00-X58Other external causes of accidental injury
- W00-W19Slipping, tripping, stumbling and falls
- W20-W49Exposure to inanimate mechanical forces
- W50-W64Exposure to animate mechanical forces
- W65-W74Accidental non-transport drowning and submersion
- W85-W99Exposure to electric current, radiation and extreme ambient air temperature and pressure
- X00-X08Exposure to smoke, fire and flames
- X10-X19Contact with heat and hot substances
- X30-X39Exposure to forces of nature
- X52-X58Accidental exposure to other specified factors
- X71-X83Intentional self-harm
- X92-Y09Assault
- Y21-Y33Event of undetermined intent
- Y35-Y38Legal intervention, operations of war, military operations, and terrorism
- Y62-Y84Complications of medical and surgical care
- Y62-Y69Misadventures to patients during surgical and medical care
- Y70-Y82Medical devices associated with adverse incidents in diagnostic and therapeutic use
- Y83-Y84Surgical and other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
- Y90-Y99Supplementary factors related to causes of morbidity classified elsewhere
Z00–Z99Factors Influencing Health Status and Contact with Health ServicesChapter 21 · 1,861 codes
- Z00-Z13Persons encountering health services for examinations
- Z14-Z15Genetic carrier and genetic susceptibility to disease
- Z20-Z29Persons with potential health hazards related to communicable diseases
- Z30-Z39Persons encountering health services in circumstances related to reproduction
- Z40-Z53Encounters for other specific health care
- Z55-Z65Persons with potential health hazards related to socioeconomic and psychosocial circumstances
- Z69-Z76Persons encountering health services in other circumstances
- Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
U00–U85Codes for Special PurposesChapter 22 · 5 codes