ICD-10-CM 2027
ICD-10 code for exposure
From the official ICD-10-CM alphabetic index entry “Exposure (to)”. Page updated September 29, 2026.
About coding exposure
The ICD-10-CM code for exposure is T75.89 (Other specified effects of external causes). The official index lists 103 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T75.89.
Within T75.8, choose T75.89 (Other specified effects of external causes) only when documentation doesn't support a more specific option: effects of abnormal gravitation [G] forces (T75.81), effects of weightlessness (T75.82) and effects of war theater (T75.83).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific exposure codes (official index)
- 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 (hazardous) 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
- high-level (HLB) Z77.42 — Contact with and (suspected) exposure to high-level blast overpressure
- low-level (LLB) 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
- body fluids (potentially hazardous) 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 (chiefly nonmedicinal) (hazardous) 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 T69.9 — Effect of reduced temperature, unspecified
- specified effect NEC T69.8 — Other specified effects of reduced temperature
- communicable disease Z20.9 — Contact with and (suspected) exposure to unspecified 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
- coronavirus (disease) (novel) 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 T73.9 — Effect of deprivation, unspecified
- environmental tobacco smoke (acute) (chronic) Z77.22 — Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
- Escherichia coli (E. coli) Z20.01 — Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)
- exhaustion due to T73.2 — Exhaustion due to exposure
- fiberglass
- 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 (HIV) Z20.6 — Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
- human T-lymphotropic virus type-1 (HTLV-1) Z20.89 — Contact with and (suspected) exposure to other communicable diseases
- implanted
- mesh
- prosthetic materials NEC
- infestation (parasitic) 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
- Escherichia coli (E. coli) Z20.01 — Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)
- lead Z77.011 — Contact with and (suspected) exposure to lead
- meningococcus Z20.811 — Contact with and (suspected) exposure to meningococcus
- mold (toxic) 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
- 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
- specified NEC Z57.8 — Occupational exposure to other risk factors
- toxic agents (gases) (liquids) (solids) (vapors) in agriculture Z57.4 — Occupational exposure to toxic agents in agriculture
- toxic agents (gases) (liquids) (solids) (vapors) in industry NEC Z57.5 — Occupational exposure to toxic agents in other industries
- vibration Z57.7 — Occupational exposure to vibration
- 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
- 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
- prenatal (drugs) (toxic chemicals)
- 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 (Florida) Z77.121 — Contact with and (suspected) exposure to harmful algae and algae toxins
- risk factor, personal, to diethylstilbestrol (DES) (in utero) 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 (acute) (chronic) Z77.22 — Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
- in the perinatal period P96.81 — Exposure to (parental) (environmental) tobacco smoke in the perinatal period
- sexually-transmitted disease Z20.2 — Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
- smallpox (laboratory) 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
- theater, burn pits in Z77.32 — Contact with and (suspected) exposure to burn pits in war theater
- water pollution Z77.111 — Contact with and (suspected) exposure to water pollution
- Zika virus Z20.821 — Contact with and (suspected) exposure to Zika virus
Common questions about exposure ICD-10 codes
What is the ICD-10 code for exposure?
- T75.89 — Other specified effects of external causes (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Z20.7, Z77.33, Z20.6, Z77.110 and others below.
What is the ICD-10 code for acariasis exposure?
- Z20.7 — Contact with and (suspected) exposure to pediculosis, acariasis and other infestations.
What is the ICD-10 code for agent orange exposure?
- Z77.33 — Contact with and (suspected) exposure to Agent Orange.
What is the ICD-10 code for aids virus exposure?
- Z20.6 — Contact with and (suspected) exposure to human immunodeficiency virus [HIV].
What is the ICD-10 code for air pollution exposure?
- Z77.110 — Contact with and (suspected) exposure to air pollution.
What is the ICD-10 code for algae and algae toxins exposure?
- Z77.121 — Contact with and (suspected) exposure to harmful algae and algae toxins.
What is the ICD-10 code for algae bloom exposure?
- Z77.121 — Contact with and (suspected) exposure to harmful algae and algae toxins.
Is T75.89 billable?
- No. T75.89 is a header code. Report one of its more specific subcodes instead.