2021

  1. ICD-10-CM Codes
    2. ›
  2. V00-Y99 External causes of morbidity
    3. ›
  3. W50-W64 Exposure to animate mechanical forces
    4. ›
  4. W55- Contact with other mammals
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code W55

2021 ICD-10-CM Diagnosis Code W55

Contact with other mammals

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • W55 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM W55 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of W55 - other international versions of ICD-10 W55 may differ.
ICD-10-CM Coding Rules
  • W55 describes the circumstance causing an injury, not the nature of the injury.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as W55. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • animal being ridden- see transport accidents
  • bitten or struck by dog (
    ICD-10-CM Diagnosis Code W54

    Contact with dog

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • contact with saliva, feces or urine of dog
    W54
    )
  • bitten or struck by rodent (
    ICD-10-CM Diagnosis Code W53
    W53.-
    )
  • contact with marine mammals (
    ICD-10-CM Diagnosis Code W56
    • W56 Contact with nonvenomous marine animal
      • W56.0 Contact with dolphin
      • W56.1 Contact with sea lion
      • W56.2 Contact with orca
      • W56.3 Contact with other marine mammals
        • W56.31 Bitten by other marine mammals
          • W56.31XA Bitten by other marine mammals, initial encou...
          • W56.31XD Bitten by other marine mammals, subsequent en...
          • W56.31XS …… sequela
        • W56.32 Struck by other marine mammals
          • W56.32XA Struck by other marine mammals, initial encou...
          • W56.32XD Struck by other marine mammals, subsequent en...
          • W56.32XS …… sequela
        • W56.39 Other contact with other marine mammals
          • W56.39XA Other contact with other marine mammals, init...
          • W56.39XD Other contact with other marine mammals, subs...
          • W56.39XS Other contact with other marine mammals, sequ...
      • W56.4 Contact with shark
      • W56.5 Contact with other fish
      • W56.8 Contact with other nonvenomous marine animals...
        • W56.81 Bitten by other nonvenomous marine animals
          • W56.81XA Bitten by other nonvenomous marine animals, i...
          • W56.81XD Bitten by other nonvenomous marine animals, s...
          • W56.81XS Bitten by other nonvenomous marine animals, s...
        • W56.82 Struck by other nonvenomous marine animals
          • W56.82XA Struck by other nonvenomous marine animals, i...
          • W56.82XD Struck by other nonvenomous marine animals, s...
          • W56.82XS Struck by other nonvenomous marine animals, s...
        • W56.89 Other contact with other nonvenomous marine a...
          • W56.89XA Other contact with other nonvenomous marine a...
          • W56.89XD Other contact with other nonvenomous marine a...
          • W56.89XS Other contact with other nonvenomous marine a...
    W56.-
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • contact with saliva, feces or urine of mammal
The following code(s) above W55 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to W55:
  • V00-Y99
    2021 ICD-10-CM Range V00-Y99

    External causes of morbidity

    Note
    • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.
    External causes of morbidity
  • W50-W64
    2021 ICD-10-CM Range W50-W64

    Exposure to animate mechanical forces

    Type 1 Excludes
    • Toxic effect of contact with venomous animals and plants (T63.-)
    Exposure to animate mechanical forces
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To W55
W54.0XXD …… subsequent encounter
W54.0XXS …… sequela
W54.1 Struck by dog
W54.1XXA …… initial encounter
W54.1XXD …… subsequent encounter
W54.1XXS …… sequela
W54.8 Other contact with dog
W54.8XXA …… initial encounter
W54.8XXD …… subsequent encounter
W54.8XXS …… sequela
W55 Contact with other mammals
W55.0 Contact with cat
W55.01 Bitten by cat
W55.01XA …… initial encounter
W55.01XD …… subsequent encounter
W55.01XS …… sequela
W55.03 Scratched by cat
W55.03XA …… initial encounter
W55.03XD …… subsequent encounter
W55.03XS …… sequela
W55.09 Other contact with cat

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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