Other and unspecified effects of external causes (T66-T78)
T66Radiation sickness, unspecified
Excludes 1: specified adverse effects of radiation, such as:
› burns (T20-T31)
› leukemia (C91-C95)
› radiation gastroenteritis and colitis (K52.0)
› radiation pneumonitis (J70.0)
› radiation related disorders of the skin and subcutaneous tissue (L55-L59)
› sunburn (L55.-)
The appropriate 7th character is to be added to code T66
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T67Effects of heat and light
Excludes 1: erythema [dermatitis] ab igne (L59.0)
› malignant hyperpyrexia due to anesthesia (T88.3)
› radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
Excludes 2: burns (T20-T31)
› sunburn (L55.-)
› sweat disorder due to heat (L74-L75)
The appropriate 7th character is to be added to each code from category T67
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T67.0Heatstroke and sunstroke
Use Additional Code: code(s) to identify any associated complications of heatstroke, such as:
› coma and stupor (R40.-)
› rhabdomyolysis (M62.82)
› systemic inflammatory response syndrome (R65.1-)
T67.01Heatstroke and sunstroke
› Heat apoplexy
› Heat pyrexia
› Siriasis
› Thermoplegia
T67.02Exertional heatstroke
T67.09Other heatstroke and sunstroke
T67.1Heat syncope
› Heat collapse
T67.2Heat cramp
T67.3Heat exhaustion, anhydrotic
› Heat prostration due to water depletion
Excludes 1: heat exhaustion due to salt depletion (T67.4)
T67.4Heat exhaustion due to salt depletion
› Heat prostration due to salt (and water) depletion
T67.5Heat exhaustion, unspecified
› Heat prostration NOS
T67.6Heat fatigue, transient
T67.7Heat edema
T67.8Other effects of heat and light
T67.9Effect of heat and light, unspecified
T68Hypothermia
› Accidental hypothermia
› Hypothermia NOS
Use Additional Code: code to identify source of exposure:
› Exposure to excessive cold of man-made origin (W93)
› Exposure to excessive cold of natural origin (X31)
Excludes 1: hypothermia following anesthesia (T88.51)
› hypothermia not associated with low environmental temperature (R68.0)
› hypothermia of newborn (P80.-)
Excludes 2: frostbite (T33-T34)
The appropriate 7th character is to be added to code T68
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T69Other effects of reduced temperature
Use Additional Code: code to identify source of exposure:
› Exposure to excessive cold of man-made origin (W93)
› Exposure to excessive cold of natural origin (X31)
Excludes 2: frostbite (T33-T34)
The appropriate 7th character is to be added to each code from category T69
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T69.0Immersion hand and foot
T69.01Immersion hand
T69.011Immersion hand, right hand
T69.012Immersion hand, left hand
T69.019Immersion hand, unspecified hand
T69.02Immersion foot
› Trench foot
T69.021Immersion foot, right foot
T69.022Immersion foot, left foot
T69.029Immersion foot, unspecified foot
T69.1Chilblains
T69.8Other specified effects of reduced temperature
T69.9Effect of reduced temperature, unspecified
T70Effects of air pressure and water pressure
The appropriate 7th character is to be added to each code from category T70
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T70.0Otitic barotrauma
› Aero-otitis media
› Effects of change in ambient atmospheric pressure or water pressure on ears
T70.1Sinus barotrauma
› Aerosinusitis
› Effects of change in ambient atmospheric pressure on sinuses
T70.2Other and unspecified effects of high altitude
Excludes 2: polycythemia due to high altitude (D75.1)
T70.20Unspecified effects of high altitude
T70.29Other effects of high altitude
› Alpine sickness
› Anoxia due to high altitude
› Barotrauma NOS
› Hypobaropathy
› Mountain sickness
T70.3Caisson disease [decompression sickness]
› Compressed-air disease
› Diver's palsy or paralysis
T70.4Effects of high-pressure fluids
› Hydraulic jet injection (industrial)
› Pneumatic jet injection (industrial)
› Traumatic jet injection (industrial)
T70.8Other effects of air pressure and water pressure
T70.9Effect of air pressure and water pressure, unspecified
T71Asphyxiation
› Mechanical suffocation
› Traumatic suffocation
Excludes 1: acute respiratory distress (syndrome) (J80)
› anoxia due to high altitude (T70.2)
› asphyxia NOS (R09.01)
› asphyxia from carbon monoxide (T58.-)
› asphyxia from inhalation of food or foreign body (T17.-)
› asphyxia from other gases, fumes and vapors (T59.-)
› respiratory distress (syndrome) in newborn (P22.-)
The appropriate 7th character is to be added to each code from category T71
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T71.1Asphyxiation due to mechanical threat to breathing
› Suffocation due to mechanical threat to breathing
T71.11Asphyxiation due to smothering under pillow
T71.111Asphyxiation due to smothering under pillow, accidental
› Asphyxiation due to smothering under pillow NOS
T71.112Asphyxiation due to smothering under pillow, intentional self-harm
T71.113Asphyxiation due to smothering under pillow, assault
T71.114Asphyxiation due to smothering under pillow, undetermined
T71.12Asphyxiation due to plastic bag
T71.121Asphyxiation due to plastic bag, accidental
› Asphyxiation due to plastic bag NOS
T71.122Asphyxiation due to plastic bag, intentional self-harm
T71.123Asphyxiation due to plastic bag, assault
T71.124Asphyxiation due to plastic bag, undetermined
T71.13Asphyxiation due to being trapped in bed linens
T71.131Asphyxiation due to being trapped in bed linens, accidental
› Asphyxiation due to being trapped in bed linens NOS
T71.132Asphyxiation due to being trapped in bed linens, intentional self-harm
T71.133Asphyxiation due to being trapped in bed linens, assault
T71.134Asphyxiation due to being trapped in bed linens, undetermined
T71.14Asphyxiation due to smothering under another person's body (in bed)
T71.141Asphyxiation due to smothering under another person's body (in bed), accidental
› Asphyxiation due to smothering under another person's body (in bed) NOS
T71.143Asphyxiation due to smothering under another person's body (in bed), assault
T71.144Asphyxiation due to smothering under another person's body (in bed), undetermined
T71.15Asphyxiation due to smothering in furniture
T71.151Asphyxiation due to smothering in furniture, accidental
› Asphyxiation due to smothering in furniture NOS
T71.152Asphyxiation due to smothering in furniture, intentional self-harm
T71.153Asphyxiation due to smothering in furniture, assault
T71.154Asphyxiation due to smothering in furniture, undetermined
T71.16Asphyxiation due to hanging
› Hanging by window shade cord
Use Additional Code: code for any associated injuries, such as:
› crushing injury of neck (S17.-)
› fracture of cervical vertebrae (S12.0-S12.2-)
› open wound of neck (S11.-)
T71.161Asphyxiation due to hanging, accidental
› Asphyxiation due to hanging NOS
› Hanging NOS
T71.162Asphyxiation due to hanging, intentional self-harm
T71.163Asphyxiation due to hanging, assault
T71.164Asphyxiation due to hanging, undetermined
T71.19Asphyxiation due to mechanical threat to breathing due to other causes
T71.191Asphyxiation due to mechanical threat to breathing due to other causes, accidental
› Asphyxiation due to other causes NOS
T71.192Asphyxiation due to mechanical threat to breathing due to other causes, intentional self-harm
T71.193Asphyxiation due to mechanical threat to breathing due to other causes, assault
T71.194Asphyxiation due to mechanical threat to breathing due to other causes, undetermined
T71.2Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air
› Suffocation due to systemic oxygen deficiency due to low oxygen content in ambient air
T71.20Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause
T71.21Asphyxiation due to cave-in or falling earth
Use Additional Code: code for any associated cataclysm (X34-X38)
T71.22Asphyxiation due to being trapped in a car trunk
T71.221Asphyxiation due to being trapped in a car trunk, accidental
T71.222Asphyxiation due to being trapped in a car trunk, intentional self-harm
T71.223Asphyxiation due to being trapped in a car trunk, assault
T71.224Asphyxiation due to being trapped in a car trunk, undetermined
T71.23Asphyxiation due to being trapped in a (discarded) refrigerator
T71.231Asphyxiation due to being trapped in a (discarded) refrigerator, accidental
T71.232Asphyxiation due to being trapped in a (discarded) refrigerator, intentional self-harm
T71.233Asphyxiation due to being trapped in a (discarded) refrigerator, assault
T71.234Asphyxiation due to being trapped in a (discarded) refrigerator, undetermined
T71.29Asphyxiation due to being trapped in other low oxygen environment
T71.9Asphyxiation due to unspecified cause
› Suffocation (by strangulation) due to unspecified cause
› Suffocation NOS
› Systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause
› Systemic oxygen deficiency due to mechanical threat to breathing due to unspecified cause
› Traumatic asphyxia NOS
T73Effects of other deprivation
The appropriate 7th character is to be added to each code from category T73
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T73.0Starvation
› Deprivation of food
T73.1Deprivation of water
T73.2Exhaustion due to exposure
T73.3Exhaustion due to excessive exertion
› Exhaustion due to overexertion
T73.8Other effects of deprivation
T73.9Effect of deprivation, unspecified
T74Adult and child abuse, neglect and other maltreatment, confirmed
Use Additional Code: code, if applicable, to identify any associated current injury
Use Additional Code: external cause code to identify perpetrator, if known (Y07.-)
Excludes 1: abuse and maltreatment in pregnancy (O9A.3-, O9A.4-, O9A.5-)
› adult and child maltreatment, suspected (T76.-)
The appropriate 7th character is to be added to each code from category T74
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T74.0Neglect or abandonment, confirmed
T74.01Adult neglect or abandonment, confirmed
T74.02Child neglect or abandonment, confirmed
T74.1Physical abuse, confirmed
Excludes 2: sexual abuse (T74.2-)
T74.11Adult physical abuse, confirmed
T74.12Child physical abuse, confirmed
Excludes 2: shaken infant syndrome (T74.4)
T74.2Sexual abuse, confirmed
› Rape, confirmed
› Sexual assault, confirmed
T74.21Adult sexual abuse, confirmed
T74.22Child sexual abuse, confirmed
T74.3Psychological abuse, confirmed
› Bullying and intimidation, confirmed
› Intimidation through social media, confirmed
› Target of threatened harm, confirmed
› Target of threatened physical violence, confirmed
› Target of threatened sexual abuse, confirmed
T74.31Adult psychological abuse, confirmed
T74.32Child psychological abuse, confirmed
T74.4Shaken infant syndrome
T74.5Forced sexual exploitation, confirmed
T74.51Adult forced sexual exploitation, confirmed
T74.52Child sexual exploitation, confirmed
T74.6Forced labor exploitation, confirmed
T74.61Adult forced labor exploitation, confirmed
T74.62Child forced labor exploitation, confirmed
T74.9Unspecified maltreatment, confirmed
T74.91Unspecified adult maltreatment, confirmed
T74.92Unspecified child maltreatment, confirmed
T74.AFinancial abuse, confirmed
T74.A1Adult financial abuse, confirmed
T74.A2Child financial abuse, confirmed
T75Other and unspecified effects of other external causes
Excludes 1: adverse effects NEC (T78.-)
Excludes 2: burns (electric) (T20-T31)
The appropriate 7th character is to be added to each code from category T75
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T75.0Effects of lightning
› Struck by lightning
T75.00Unspecified effects of lightning
› Struck by lightning NOS
T75.01Shock due to being struck by lightning
T75.09Other effects of lightning
Use Additional Code: code for other effects of lightning
T75.1Unspecified effects of drowning and nonfatal submersion
› Immersion
Excludes 1: specified effects of drowning- code to effects
T75.2Effects of vibration
T75.20Unspecified effects of vibration
T75.21Pneumatic hammer syndrome
T75.22Traumatic vasospastic syndrome
T75.23Vertigo from infrasound
Excludes 1: vertigo NOS (R42)
T75.29Other effects of vibration
T75.3Motion sickness
› Airsickness
› Seasickness
› Travel sickness
Use Additional Code: external cause code to identify vehicle or type of motion (Y92.81-)
T75.4Electrocution
› Shock from electric current
› Shock from electroshock gun (taser)
T75.8Other specified effects of external causes
T75.81Effects of abnormal gravitation [G] forces
T75.82Effects of weightlessness
T75.89Other specified effects of external causes
T76Adult and child abuse, neglect and other maltreatment, suspected
Use Additional Code: code, if applicable, to identify any associated current injury
Excludes 1: adult and child maltreatment, confirmed (T74.-)
› suspected abuse and maltreatment in pregnancy (O9A.3-, O9A.4-, O9A.5-)
› suspected adult physical abuse, ruled out (Z04.71)
› suspected adult sexual abuse, ruled out (Z04.41)
› suspected child physical abuse, ruled out (Z04.72)
› suspected child sexual abuse, ruled out (Z04.42)
The appropriate 7th character is to be added to each code from category T76
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T76.0Neglect or abandonment, suspected
T76.01Adult neglect or abandonment, suspected
T76.02Child neglect or abandonment, suspected
T76.1Physical abuse, suspected
T76.11Adult physical abuse, suspected
T76.12Child physical abuse, suspected
T76.2Sexual abuse, suspected
› Rape, suspected
Excludes 1: alleged abuse, ruled out (Z04.7)
T76.21Adult sexual abuse, suspected
T76.22Child sexual abuse, suspected
T76.3Psychological abuse, suspected
› Bullying and intimidation, suspected
› Intimidation through social media, suspected
› Target of threatened harm, suspected
› Target of threatened physical violence, suspected
› Target of threatened sexual abuse, suspected
T76.31Adult psychological abuse, suspected
T76.32Child psychological abuse, suspected
T76.5Forced sexual exploitation, suspected
T76.51Adult forced sexual exploitation, suspected
T76.52Child sexual exploitation, suspected
T76.6Forced labor exploitation, suspected
T76.61Adult forced labor exploitation, suspected
T76.62Child forced labor exploitation, suspected
T76.9Unspecified maltreatment, suspected
T76.91Unspecified adult maltreatment, suspected
T76.92Unspecified child maltreatment, suspected
T76.AFinancial abuse, suspected
T76.A1Adult financial abuse, suspected
T76.A2Child financial abuse, suspected
T78Adverse effects, not elsewhere classified
Excludes 2: complications of surgical and medical care NEC (T80-T88)
The appropriate 7th character is to be added to each code from category T78
7th Character: A :: initial encounter
› D :: subsequent encounter
› S :: sequela
T78.0Anaphylactic reaction due to food
› Anaphylactic reaction due to adverse food reaction
› Anaphylactic shock or reaction due to nonpoisonous foods
› Anaphylactoid reaction due to food
T78.00Anaphylactic reaction due to unspecified food
T78.01Anaphylactic reaction due to peanuts
T78.02Anaphylactic reaction due to shellfish (crustaceans)
T78.03Anaphylactic reaction due to other fish
T78.04Anaphylactic reaction due to fruits and vegetables
T78.05Anaphylactic reaction due to tree nuts and seeds
Excludes 2: anaphylactic reaction due to peanuts (T78.01)
T78.06Anaphylactic reaction due to food additives
T78.07Anaphylactic reaction due to milk and dairy products
T78.08Anaphylactic reaction due to eggs
T78.09Anaphylactic reaction due to other food products
T78.1Other adverse food reactions, not elsewhere classified
Use Additional Code: code to identify the type of reaction, if applicable
Excludes 1: anaphylactic reaction or shock due to adverse food reaction (T78.0-)
› anaphylactic reaction due to food (T78.0-)
› bacterial food borne intoxications (A05.-)
Excludes 2: allergic and dietetic gastroenteritis and colitis (K52.29)
› allergic rhinitis due to food (J30.5)
› dermatitis due to food in contact with skin (L23.6, L24.6, L25.4)
› dermatitis due to ingested food (L27.2)
› food protein-induced enterocolitis syndrome (K52.21)
› food protein-induced enteropathy (K52.22)
T78.2Anaphylactic shock, unspecified
› Allergic shock
› Anaphylactic reaction
› Anaphylaxis
Excludes 1: anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)
› anaphylactic reaction or shock due to adverse food reaction (T78.0-)
› anaphylactic reaction or shock due to serum (T80.5-)
T78.3Angioneurotic edema
› Allergic angioedema
› Giant urticaria
› Quincke's edema
Excludes 1: serum urticaria (T80.6-)
› urticaria (L50.-)
T78.4Other and unspecified allergy
Excludes 1: specified types of allergic reaction such as:
› allergic diarrhea (K52.29)
› allergic gastroenteritis and colitis (K52.29)
› dermatitis (L23-L25, L27.-)
› food protein-induced enterocolitis syndrome (K52.21)
› food protein-induced enteropathy (K52.22)
› hay fever (J30.1)
T78.40Allergy, unspecified
› Allergic reaction NOS
› Hypersensitivity NOS
T78.41Arthus phenomenon
› Arthus reaction
T78.49Other allergy
T78.8Other adverse effects, not elsewhere classified