Convert to ICD-10-CM: 
988.1 converts approximately to:
- 2015/16 ICD-10-CM T62.0X1A Toxic effect of ingested mushrooms, accidental (unintentional), initial encounterOr: 
- 2015/16 ICD-10-CM T62.0X2A Toxic effect of ingested mushrooms, intentional self-harm, initial encounterOr: 
- 2015/16 ICD-10-CM T62.0X3A Toxic effect of ingested mushrooms, assault, initial encounterOr: 
- 2015/16 ICD-10-CM T62.0X4A Toxic effect of ingested mushrooms, undetermined, initial encounter
 ICD-9-CM Volume 2 Index entries containing back-references to 
988.1:
- Mycetismus 988.1
- Noxious foodstuffs, poisoning by foodstuffs, poisoning by  fish 988.0 fish 988.0 
  fungi 988.1 fungi 988.1
  mushrooms 988.1 mushrooms 988.1
  plants (food) 988.2 plants (food) 988.2 
  shellfish 988.0 shellfish 988.0 
  specified type NEC 988.8 specified type NEC 988.8 
  toadstool 988.1 toadstool 988.1
 
 
- Poisoning (acute) - see also Table of Drugs and Chemicals death-cap (Amanita phalloides) (Amanita verna) 988.1 death-cap (Amanita phalloides) (Amanita verna) 988.1
  food (acute) (bacterial) (diseased) (infected) NEC 005.9 food (acute) (bacterial) (diseased) (infected) NEC 005.9   due to due to   bacillus bacillus    aertrycke (see also Poisoning, food, due to Salmonella) 003.9 aertrycke (see also Poisoning, food, due to Salmonella) 003.9 
    botulinus 005.1 botulinus 005.1 
    cereus 005.89 cereus 005.89 
    choleraesuis (see also Poisoning, food, due to Salmonella) 003.9 choleraesuis (see also Poisoning, food, due to Salmonella) 003.9 
    paratyphosus (see also Poisoning, food, due to Salmonella) 003.9 paratyphosus (see also Poisoning, food, due to Salmonella) 003.9 
    suipestifer (see also Poisoning, food, due to Salmonella) 003.9 suipestifer (see also Poisoning, food, due to Salmonella) 003.9 
 
   Clostridium 005.3 Clostridium 005.3 
   Salmonella (aertrycke) (callinarum) (choleraesuis) (enteritidis) (paratyphi) (suipestifer) 003.9 Salmonella (aertrycke) (callinarum) (choleraesuis) (enteritidis) (paratyphi) (suipestifer) 003.9     with with     gastroenteritis 003.0 gastroenteritis 003.0 
     localized infection(s) (see also Infection, Salmonella) 003.20 localized infection(s) (see also Infection, Salmonella) 003.20 
     septicemia 003.1 septicemia 003.1 
     specified manifestation NEC 003.8 specified manifestation NEC 003.8 
 
 
   specified bacterium NEC 005.89 specified bacterium NEC 005.89 
   Staphylococcus 005.0 Staphylococcus 005.0 
   Streptococcus 005.89 Streptococcus 005.89 
   Vibrio parahaemolyticus 005.4 Vibrio parahaemolyticus 005.4 
   Vibrio vulnificus 005.81 Vibrio vulnificus 005.81 
 
  noxious or naturally toxic 988.0 noxious or naturally toxic 988.0 
 
  mushroom (noxious) 988.1 mushroom (noxious) 988.1