Specific code 2012 ICD-9-CM Diagnosis Code 977.9
Poisoning by unspecified drug or medicinal substance
  • Short description: Poison-medicinal agt NOS.
  • ICD-9-CM 977.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 977.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 977.9.
  • More recent version(s) of ICD-9-CM 977.9: 2013 2014.
Disease Synonyms
  • Drug overdose
  • Drug overdose, nonaccidental
  • Non-accidental drug overdose
  • Poisoning by drug
  • Poisoning by drug AND/OR medicinal substance
  • Poisoning by drug or medicinal substance
Convert to ICD-10-CM: 977.9 converts approximately to:
  • 2014 ICD-10-CM T50.901A Poisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), initial encounter
    Or:
  • 2014 ICD-10-CM T50.902A Poisoning by unspecified drugs, medicaments and biological substances, intentional self-harm, initial encounter
    Or:
  • 2014 ICD-10-CM T50.903A Poisoning by unspecified drugs, medicaments and biological substances, assault, initial encounter
    Or:
  • 2014 ICD-10-CM T50.904A Poisoning by unspecified drugs, medicaments and biological substances, undetermined, initial encounter
ICD-9-CM Volume 2 Index entries containing back-references to 977.9:
  • Allergy, allergic (reaction) 995.3
    • drug, medicinal substance, and biological (any) (correct medicinal substance properly administered) (external) (internal) 995.27
      • wrong substance given or taken NEC 977.9
        • specified drug or substance - see Table of Drugs and Chemicals
  • Anaphylactic reaction or shock (correct substance properly administered) 995.0
    • due to
      • administration of blood and blood products 999.41
      • chemical - see Table of Drugs and Chemicals
      • correct medicinal substance properly administered 995.0
      • drug or medicinal substance
        • correct substance properly administered 995.0
        • overdose or wrong substance given or taken 977.9
          • specified drug - see Table of Drugs and Chemicals
      • following sting(s) 989.5
      • food 995.60
      • immunization 999.42
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
      • serum NEC 999.49
  • Arthus phenomenon 995.21
    • due to
      • correct substance properly administered 995.21
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
      • serum 999.59
  • Constipation 564.00
    • drug induced
      • correct substance properly administered 564.09
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Dermatitis (allergic) (contact) (occupational) (venenata) 692.9
    • due to
      • acetone 692.2
      • acids 692.4
      • adhesive plaster 692.4
      • alcohol (skin contact) (substances classifiable to 980.0-980.9) 692.4
      • alkalis 692.4
      • allergy NEC 692.9
      • ammonia (household) (liquid) 692.4
      • animal
      • arnica 692.3
      • arsenic 692.4
      • blister beetle 692.89
      • cantharides 692.3
      • carbon disulphide 692.2
      • caterpillar 692.89
      • caustics 692.4
      • cereal (ingested) 693.1
      • chemical(s) NEC 692.4
      • chlorocompounds 692.2
      • coffee (ingested) 693.1
      • cold weather 692.89
      • cosmetics 692.81
      • cyclohexanes 692.2
      • dander, animal (cat) (dog) 692.84
      • deodorant 692.81
      • detergents 692.0
      • dichromate 692.4
      • drugs and medicinals (correct substance properly administered) (internal use) 693.0
        • external (in contact with skin) 692.3
          • wrong substance given or taken 976.9
            • specified substance - see Table of Drugs and Chemicals
        • wrong substance given or taken 977.9
          • specified substance - see Table of Drugs and Chemicals
      • dyes 692.89
      • epidermophytosis - see Dermatophytosis
      • esters 692.2
      • external irritant NEC 692.9
      • eye shadow 692.81
      • fish (ingested) 693.1
      • flour (ingested) 693.1
      • food (ingested) 693.1
        • in contact with skin 692.5
      • fruit (ingested) 693.1
      • fungicides 692.3
      • furs 692.84
      • glycols 692.2
      • greases NEC 692.1
      • hair, animal (cat) (dog) 692.84
      • hair dyes 692.89
      • hot
        • objects and materials - see Burn, by site
        • weather or places 692.89
      • hydrocarbons 692.2
      • infrared rays, except from sun 692.82
        • solar NEC (see also Dermatitis, due to, sun) 692.70
      • ingested substance 693.9
        • drugs and medicinals (see also Dermatitis, due to, drugs and medicinals) 693.0
        • food 693.1
        • specified substance NEC 693.8
      • ingestion or injection of
        • chemical 693.8
        • drug (correct substance properly administered) 693.0
          • wrong substance given or taken 977.9
            • specified substance - see Table of Drugs and Chemicals
      • insecticides 692.4
      • internal agent 693.9
        • drugs and medicinals (see also Dermatitis, due to, drugs and medicinals) 693.0
        • food (ingested) 693.1
          • in contact with skin 692.5
        • specified agent NEC 693.8
      • iodine 692.3
      • iodoform 692.3
      • irradiation 692.82
      • jewelry 692.83
      • keratolytics 692.3
      • ketones 692.2
      • lacquer tree (Rhus verniciflua) 692.6
      • light (sun) NEC (see also Dermatitis, due to, sun) 692.70
      • low temperature 692.89
      • mascara 692.81
      • meat (ingested) 693.1
      • mercury, mercurials 692.3
      • metals 692.83
      • milk (ingested) 693.1
      • Neomycin 692.3
      • nylon 692.4
      • oils NEC 692.1
      • paint solvent 692.2
      • pediculocides 692.3
      • petroleum products (substances classifiable to 981) 692.4
      • phenol 692.3
      • photosensitiveness, photosensitivity (sun) 692.72
      • plants NEC 692.6
      • plasters, medicated (any) 692.3
      • plastic 692.4
      • poison
        • ivy (Rhus toxicodendron) 692.6
        • oak (Rhus diversiloba) 692.6
        • plant or vine 692.6
        • sumac (Rhus venenata) 692.6
        • vine (Rhus radicans) 692.6
      • preservatives 692.89
      • primrose (primula) 692.6
      • primula 692.6
      • radiation 692.82
        • sun NEC (see also Dermatitis, due to, sun) 692.70
        • tanning bed 692.82
      • radioactive substance 692.82
      • radium 692.82
      • ragweed (Senecio jacobae) 692.6
      • Rhus (diversiloba) (radicans) (toxicodendron) (venenata) (verniciflua) 692.6
      • rubber 692.4
      • scabicides 692.3
      • Senecio jacobae 692.6
      • solar radiation - see Dermatitis, due to, sun
      • solvents (any) (substances classifiable to (982.0-982.8) 692.2
      • specified agent NEC 692.89
      • sun 692.70
      • sunburn (see also Sunburn) 692.71
      • sunshine NEC (see also Dermatitis, due to, sun) 692.70
      • tanning bed 692.82
      • tetrachlorethylene 692.2
      • toluene 692.2
      • topical medications 692.3
      • turpentine 692.2
      • ultraviolet rays, except from sun 692.82
        • sun NEC (see also Dermatitis, due to, sun) 692.70
      • vaccine or vaccination (correct substance properly administered) 693.0
        • wrong substance given or taken
          • bacterial vaccine 978.8
            • specified - see Table of Drugs and Chemicals
          • other vaccines NEC 979.9
            • specified - see Table of Drugs and Chemicals
      • varicose veins (see also Varicose, vein, inflamed or infected) 454.1
      • x-rays 692.82
  • Disease, diseased - see also Syndrome
    • Lyell's (toxic epidermal necrolysis) 695.15
      • due to drug
        • correct substance properly administered 695.15
        • overdose or wrong substance given or taken 977.9
          • specific drug - see Table of Drugs and Chemicals
  • Effect, adverse NEC
    • drugs and medicinals 995.20
      • correct substance properly administered 995.20
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Epidermolysis
    • necroticans combustiformis 695.15
      • due to drug
        • correct substance properly administered 695.15
        • overdose or wrong substance given or taken 977.9
          • specified drug - see Table of Drugs and Chemicals
  • Ingestion
    • drug or medicinal substance
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Intolerance
    • drug
      • correct substance properly administered 995.27
      • wrong substance given or taken in error 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Lyell's disease or syndrome (toxic epidermal necrolysis) 695.15
    • due to drug
      • correct substance properly administered 695.15
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Medicine poisoning (by overdose) (wrong substance given or taken in error) 977.9
    • specified drug or substance - see Table of Drugs and Chemicals
  • Narcosis
    • due to drug
      • correct substance properly administered 780.09
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Necrolysis, toxic epidermal 695.15
    • due to drug
      • correct substance properly administered 695.15
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Overdose overdosage (drug) 977.9
    • specified drug or substance - see Table of Drugs and Chemicals
  • Polyneuropathy (peripheral) 356.9
    • due to
      • antitetanus serum 357.6
      • arsenic 357.7
      • drug or medicinal substance 357.6
        • correct substance properly administered 357.6
        • overdose or wrong substance given or taken 977.9
          • specified drug - see Table of Drugs and Chemicals
      • lack of vitamin NEC 269.2 [357.4]
      • lead 357.7
      • organophosphate compounds 357.7
      • pellagra 265.2 [357.4]
      • porphyria 277.1 [357.4]
      • serum 357.6
      • toxic agent NEC 357.7
  • Porphyria (acute) (congenital) (constitutional) (erythropoietic) (familial) (hepatica) (idiopathic) (idiosyncratic) (intermittent) (latent) (mixed hepatic) (photosensitive) (South African genetic) (Swedish) 277.1
    • due to drugs
      • correct substance properly administered 277.1
      • overdose or wrong substance given or taken 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Reaction
    • drug NEC (see also Table of Drugs and Chemicals) 995.20
      • allergic - see also Allergy, drug 995.27
      • correct substance properly administered 995.20
      • obstetric anesthetic or analgesic NEC 668.9
        • affecting fetus or newborn 763.5
        • specified drug - see Table of Drugs and Chemicals
      • overdose or poisoning 977.9
        • specified drug - see Table of Drugs and Chemicals
      • specific to newborn 779.4
      • transmitted via placenta or breast milk - see Absorption, drug, through placenta
      • withdrawal NEC 292.0
        • infant of dependent mother 779.5
      • wrong substance given or taken in error 977.9
        • specified drug - see Table of Drugs and Chemicals
  • Shock 785.50
    • due to
      • drug 995.0
        • correct substance properly administered 995.0
        • overdose or wrong substance given or taken 977.9
          • specified drug - see Table of Drugs and Chemicals
      • food - see Anaphylactic shock, due to, food
  • Syndrome - see also Disease
    • Lyell's (toxic epidermal necrolysis) 695.15
      • due to drug
        • correct substance properly administered 695.15
        • overdose or wrong substance given or taken 977.9
          • specified drug - see Table of Drugs and Chemicals
  • Wrong drug (given in error) NEC 977.9
    • specified drug or substance - see Table of Drugs and Chemicals
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 977.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.