Someone helpful has changed the ICD-10 definition to include the word tick, although the ICD-10 definition is “Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter.” A tick is an arthropod. But, the problem with that is, W57.xxxA is an external cause code.
The first code should be an S code that describes the location of the bite, such as S70.362A “Insect bite (nonvenomous), left thigh, initial encounter.” So, it isn’t that it is difficult to code for a tick bite, it’s that there are two steps and the super easy, quick search leads providers astray.
2018/2019 ICD-10-CM Diagnosis Code Z86.19. Personal history of other infectious and parasitic diseases. Z86.19 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
It may not be submitted in the first position on the claim form, and often it is the only code selected by the provider. The first code should be an S code that describes the location of the bite, such as S70.362A “Insect bite (nonvenomous), left thigh, initial encounter.”
ICD-10 code A69. 2 for Lyme disease is a medical classification as listed by WHO under the range - Certain infectious and parasitic diseases .
919.4 - Insect bite, nonvenomous, of other, multiple, and unspecified sites, without mention of infection | ICD-10-CM.
K31. 89 - Other diseases of stomach and duodenum. ICD-10-CM.
R46. 89 - Other Symptoms and Signs Involving Appearance and Behavior [Internet]. In: ICD-10-CM.
This time around, “I would code the removal as 10120 [Incision and removal of foreign body, subcutaneous tissues; simple],” says Charles, “as the provider documented that an incision was made to remove the tick.
Ticks are rarely considered as venomous animals despite that tick saliva contains several protein families present in venomous taxa and that many Ixodida genera can induce paralysis and other types of toxicoses.
Gastroptosis is the abnormal downward displacement of the stomach. Although this condition is not life threatening is associated with constipation, discomfort, vomiting, dyspepsia, tenesmus, anorexia, nausea and belching.
Angiodysplasia of stomach and duodenum without bleeding 819 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM K31. 819 became effective on October 1, 2021. This is the American ICD-10-CM version of K31.
Antrum: the lower portion (near the small intestine), where the food mixes with gastric juice. Pylorus: the last part of the stomach, which acts as a valve to control the emptying of the stomach contents into the small intestine.
Code F41. 9 is the diagnosis code used for Anxiety Disorder, Unspecified. It is a category of psychiatric disorders which are characterized by anxious feelings or fear often accompanied by physical symptoms associated with anxiety.
ICD-10 code F91. 9 for Conduct disorder, unspecified is a medical classification as listed by WHO under the range - Mental, Behavioral and Neurodevelopmental disorders .
Transient alteration of awareness 4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM R40. 4 became effective on October 1, 2021. This is the American ICD-10-CM version of R40.
A tick is an arthropod. But, the problem with that is, W57.xxxA is an external cause code.
A tick is an arthropod. But, the problem with that is, W57.xxxA is an external cause code. It may not be submitted in the first position on the claim form, and often it is the only code selected by the provider.
The external cause code for the bite cannot be used as a primary diagnosis, and Z11.8 is not correct because the patient is not asymptomatic and this encounter would not meet the definition of a screening.
However you have to go by what best represents what the provider is documenting. Also, I'd just add that a tick is an arthropod and not an insect, so an insect bite code it is technically not correct - if the provider is documenting treating a tick bite, I would use the 'other superficial bite' codes for this.
Insect bite (nonvenomous) of lower leg 1 S80.86 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail. 2 The 2021 edition of ICD-10-CM S80.86 became effective on October 1, 2020. 3 This is the American ICD-10-CM version of S80.86 - other international versions of ICD-10 S80.86 may differ.
Use secondary code (s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code.