ICD-10 Code for Exposure

Also indexed as (to)

The ICD-10-CM code for exposure is T75.89 — Other specified effects of external causes. This is the code the Alphabetic Index gives for exposure with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Not billable

T75.89 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.

Which exposure code should you use?

The Alphabetic Index lists 67 codes under Exposure. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

acariasis	Z20.7	Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
Agent Orange	Z77.33	Contact with and (suspected) exposure to Agent Orange
AIDS virus	Z20.6	Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
air pollution	Z77.110	Contact with and (suspected) exposure to air pollution
algae and algae toxins	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
algae bloom	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
anthrax	Z20.810	Contact with and (suspected) exposure to anthrax
aromatic amines	Z77.020	Contact with and (suspected) exposure to aromatic amines
aromatic compounds NEC	Z77.028	Contact with and (suspected) exposure to other hazardous aromatic compounds
aromatic dyes NOS	Z77.028	Contact with and (suspected) exposure to other hazardous aromatic compounds
arsenic	Z77.010	Contact with and (suspected) exposure to arsenic
asbestos	Z77.090	Contact with and (suspected) exposure to asbestos
bacterial disease NEC	Z20.818	Contact with and (suspected) exposure to other bacterial communicable diseases
benzene	Z77.021	Contact with and (suspected) exposure to benzene
blue-green algae bloom	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
blast overpressure NOS	Z77.40	Contact with and (suspected) exposure to unspecified blast overpressure
body fluids	Z77.21	Contact with and (suspected) exposure to potentially hazardous body fluids
brown tide	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
burn pits in war theater	Z77.32	Contact with and (suspected) exposure to burn pits in war theater
chemicals NEC	Z77.098	Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicals
cholera	Z20.09	Contact with and (suspected) exposure to other intestinal infectious diseases
chromium compounds	Z77.018	Contact with and (suspected) exposure to other hazardous metals
cold, effects of	T69.9Not billable	Effect of reduced temperature, unspecified
communicable disease	Z20.9	Contact with and (suspected) exposure to unspecified communicable disease
coronavirus 2019	Z20.822	Contact with and (suspected) exposure to COVID-19
COVID-19	Z20.822	Contact with and (suspected) exposure to COVID-19
cyanobacteria bloom	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
disaster	Z65.5	Exposure to disaster, war and other hostilities
discrimination	Z60.5	Target of (perceived) adverse discrimination and persecution
dyes	Z77.098	Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicals
effects of	T73.9Not billable	Effect of deprivation, unspecified
environmental tobacco smoke	Z77.22	Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
Escherichia coli	Z20.01	Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)
exhaustion due to	T73.2Not billable	Exhaustion due to exposure
gadolinium	Z77.013	Contact with and (suspected) exposure to gadolinium
German measles	Z20.4	Contact with and (suspected) exposure to rubella
gonorrhea	Z20.2	Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
hazardous metals NEC	Z77.018	Contact with and (suspected) exposure to other hazardous metals
hazardous substances NEC	Z77.29	Contact with and (suspected) exposure to other hazardous substances
hazards in the physical environment NEC	Z77.128	Contact with and (suspected) exposure to other hazards in the physical environment
hazards to health NEC	Z77.9	Other contact with and (suspected) exposures hazardous to health
human immunodeficiency virus	Z20.6	Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
human T-lymphotropic virus type-1	Z20.89	Contact with and (suspected) exposure to other communicable diseases
infestation NEC	Z20.7	Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
intestinal infectious disease NEC	Z20.09	Contact with and (suspected) exposure to other intestinal infectious diseases
lead	Z77.011	Contact with and (suspected) exposure to lead
meningococcus	Z20.811	Contact with and (suspected) exposure to meningococcus
mold	Z77.120	Contact with and (suspected) exposure to mold (toxic)
nickel dust	Z77.018	Contact with and (suspected) exposure to other hazardous metals
noise	Z77.122	Contact with and (suspected) exposure to noise
parasitic disease NEC	Z20.7	Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
pediculosis	Z20.7	Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
persecution	Z60.5	Target of (perceived) adverse discrimination and persecution
pfiesteria piscicida	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
poliomyelitis	Z20.89	Contact with and (suspected) exposure to other communicable diseases
polycyclic aromatic hydrocarbons	Z77.028	Contact with and (suspected) exposure to other hazardous aromatic compounds
rabies	Z20.3	Contact with and (suspected) exposure to rabies
radiation, naturally occurring NEC	Z77.123	Contact with and (suspected) exposure to radon and other naturally occurring radiation
radon	Z77.123	Contact with and (suspected) exposure to radon and other naturally occurring radiation
red tide	Z77.121	Contact with and (suspected) exposure to harmful algae and algae toxins
risk factor, personal, to diethylstilbestrol	Z91.B	Personal risk factor of exposure to diethylstilbestrol
rubella	Z20.4	Contact with and (suspected) exposure to rubella
SARS-CoV-2	Z20.822	Contact with and (suspected) exposure to COVID-19
second hand tobacco smoke	Z77.22	Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
sexually-transmitted disease	Z20.2	Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
smallpox	Z20.89	Contact with and (suspected) exposure to other communicable diseases
syphilis	Z20.2	Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
terrorism	Z65.4	Victim of crime and terrorism
torture	Z65.4	Victim of crime and terrorism
tuberculosis	Z20.1	Contact with and (suspected) exposure to tuberculosis
uranium	Z77.012	Contact with and (suspected) exposure to uranium
varicella	Z20.820	Contact with and (suspected) exposure to varicella
venereal disease	Z20.2	Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
viral disease NEC	Z20.828	Contact with and (suspected) exposure to other viral communicable diseases
war	Z65.5	Exposure to disaster, war and other hostilities
water pollution	Z77.111	Contact with and (suspected) exposure to water pollution
Zika virus	Z20.821	Contact with and (suspected) exposure to Zika virus

Exposure blast overpressure NOS

high-level	Z77.42	Contact with and (suspected) exposure to high-level blast overpressure
low-level	Z77.41	Contact with and (suspected) exposure to low-level blast overpressure
specified NEC	Z77.49	Contact with and (suspected) exposure to other blast overpressure

Exposure cold, effects of

specified effect NEC

T69.8Not billable

Other specified effects of reduced temperature

Exposure communicable disease

bacterial NEC	Z20.818	Contact with and (suspected) exposure to other bacterial communicable diseases
specified NEC	Z20.89	Contact with and (suspected) exposure to other communicable diseases
viral NEC	Z20.828	Contact with and (suspected) exposure to other viral communicable diseases
Zika virus	Z20.821	Contact with and (suspected) exposure to Zika virus

Exposure intestinal infectious disease NEC

Escherichia coli

Z20.01

Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)

Exposure occupational

air contaminants NEC	Z57.39	Occupational exposure to other air contaminants
dust	Z57.2	Occupational exposure to dust
environmental tobacco smoke	Z57.31	Occupational exposure to environmental tobacco smoke
extreme temperature	Z57.6	Occupational exposure to extreme temperature
noise	Z57.0	Occupational exposure to noise
radiation	Z57.1	Occupational exposure to radiation
risk factors	Z57.9	Occupational exposure to unspecified risk factor
toxic agents in agriculture	Z57.4	Occupational exposure to toxic agents in agriculture
toxic agents in industry NEC	Z57.5	Occupational exposure to toxic agents in other industries
vibration	Z57.7	Occupational exposure to vibration
risk factors › specified NEC	Z57.8	Occupational exposure to other risk factors

Exposure pollution

air	Z77.110	Contact with and (suspected) exposure to air pollution
environmental NEC	Z77.118	Contact with and (suspected) exposure to other environmental pollution
soil	Z77.112	Contact with and (suspected) exposure to soil pollution
water	Z77.111	Contact with and (suspected) exposure to water pollution

Exposure second hand tobacco smoke

in the perinatal period

P96.81

Exposure to (parental) (environmental) tobacco smoke in the perinatal period

Exposure war

theater, burn pits in

Z77.32

Contact with and (suspected) exposure to burn pits in war theater

Codes under T75.89

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources