2025 Drugs Underdosing ICD-10-CM Codes
When coding drug underdosing due to the improper use of a medication or substance first assign the appropriate code from the 516 total codes in the ICD-10-CM Table of Drugs and Chemicals. No additional external cause code is required for poisonings, toxic effects, adverse effects and underdosing codes.
ICD Code | Description | Category | Applicable To |
---|---|---|---|
T50.A26D | Underdosing of mixed bacterial vaccines without a pertussis component, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.A96 | Underdosing of other bacterial vaccines | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | BCG (vaccine); Cholera vaccine; Meningococcal vaccine; Menningovax (-AC) (-C); Paratyphoid vaccine; Plague vaccine; Rickettsial vaccine NEC; Rocky Mountain spotted fever vaccine; Tetanus toxoid or vaccine; Tetanus toxoid or vaccineantitoxin; Tetanus toxoid or vaccineimmune globulin (human); Tetanus toxoid or vaccinetoxoid; Tetanus toxoid or vaccinetoxoidwith diphtheria toxoid; Tetanus toxoid or va... |
T50.A96A | Underdosing of other bacterial vaccines, initial encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.A96D | Underdosing of other bacterial vaccines, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.B16 | Underdosing of smallpox vaccines | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | Smallpox vaccine |
T50.B16A | Underdosing of smallpox vaccines, initial encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.B16D | Underdosing of smallpox vaccines, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.B96 | Underdosing of other viral vaccines | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | Diplovax; Influenza vaccine; Measles virus vaccine (attenuated); Meruvax; Mumpsvax; Orimune; Poliomyelitis vaccine; Rubella vaccine; Rubeola vaccine; Synagis; Viral vaccine NEC; Yellow; Yellowfever vaccine; Yellowjasmine; Yellowphenolphthalein |
T50.B96A | Underdosing of other viral vaccines, initial encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.B96D | Underdosing of other viral vaccines, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.Z16 | Underdosing of immunoglobulin | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | AHLG; Anti-D immunoglobulin (human); Antidiphtheria serum; Anti-human lymphocytic globulin; Antirabies hyperimmune serum; Antiscorpion sera; Antitetanus immunoglobulin; Antitoxin; Antitoxindiphtheria; Antitoxingas gangrene; Antitoxintetanus; Antivenin, antivenom (sera); Antivenin, antivenom (sera)crotaline; Antivenin, antivenom (sera)spider bite; Botulinus anti-toxin (type A, B); Diphtheria; Dipht... |
T50.Z16A | Underdosing of immunoglobulin, initial encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.Z16D | Underdosing of immunoglobulin, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.Z96 | Underdosing of other vaccines and biological substances | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | Glandular extract (medicinal) NEC; Pegademase, bovine; Vaccine NEC; Vaccine NECantineoplastic; Vaccine NECbacterial NEC; Vaccine NECbacterial NECwith; Vaccine NECbacterial NECwithother bacterial component; Vaccine NECbacterial NECwithpertussis component; Vaccine NECbacterial NECwithviral-rickettsial component; Vaccine NECbacterial NECmixed NEC; Vaccine NECBCG; Vaccine NECcholera; Vaccine NECdiphth... |
T50.Z96A | Underdosing of other vaccines and biological substances, initial encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) | |
T50.Z96D | Underdosing of other vaccines and biological substances, subsequent encounter | Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances (T50) |