ICD-9 Diagnosis Questions Flashcards
What is a poisoning?
Caused when a substance is not used according to the physician’s instructions.
Code first the drug or agent
Then specified code for that effect or manifestation (vomiting)
Last E code
What is an adverse affect?
When a patient experiences an adverse reaction to a properly prescribed and administered medication.
What is a Toxic effect?
When a harmful substance is ingested or comes in contact with a person
Code first the effect (980-989) by selecting the substance (bleach)
Next result of toxic effect (vomiting)
Last e code
How would you code a Late effect of an adverse effect?
Code residual condition first
Then 909.5
E code for drug
How would you code late effects of poisoning or toxic effects?
Code residual first
Then 909.0 or 909.1
E code
When can BMI be coded as a diagnosis?
When the dxs meets the definition of a reportable additional diagnosis,
The physician documents it
There is a dxs of obesity
When should cellulitis be coded as the primary diagnosis?
When the patient is treated primary for the cellulitis
When a patient has been injured and has cellulitis, when would the injury be coded as primary?
When the pt is being treated primary for the injury, not the cellulitis
Pt suffers CVA with neurological defects that have resolved prior to discharge. Would you still code the nuero defects?
Yes
What is a poisoning?
Caused when a substance is not used according to the physician’s instructions.
Code first the drug or agent
Then specified code for that effect or manifestation (vomiting)
Last E code
What is a Toxic effect?
When a harmful substance is ingested or comes in contact with a person
Code first the effect (980-989) by selecting the substance (bleach)
Next result of toxic effect (vomiting)
Last e code
How would you code a Late effect of an adverse effect?
Code residual condition first
Then 909.5
E code for drug
How would you code late effects of poisoning or toxic effects?
Code residual first
Then 909.0 or 909.1
E code
When can BMI be coded as a diagnosis?
When the dxs meets the definition of a reportable additional diagnosis,
The physician documents it
There is a dxs of obesity
When should cellulitis be coded as the primary diagnosis?
When the patient is treated primary for the cellulitis
When a patient has been injured and has cellulitis, when would the injury be coded as primary?
When the pt is being treated primary for the injury, not the cellulitis
Pt suffers CVA with neurological defects that have resolved prior to discharge. Would you still code the nuero defects?
Yes
When do patients with type one diabetes developed a condition
Before reaching puberty
When would the code for long-term current use of insulin be assigned? (V58.67).
When the patient is a type two diabetic and routinely uses insulin
What is the diagnosis code for and under dose of insulin due to an insulin pump failure?
996.57 that should be the primary code followed by a from from category 250
What is the diagnosis code for an overdose of insulin due to a pump malfunction?
962.3 poisoning by insulin and antidiabetic agents also called the appropriate code from 250
From what category would you code diabetes caused by another event or condition?
Category 249 secondary diabetes mellitus followed by the code for the associated conditions
What code would you sign for post pancreatectomy diabetes mellitus?
251.3 assign a code from 249 for secondary diabetes mellitus also assign v88.1 aqui red absence of the pancreas plus any manifestations
When can and E code be assigned as the principal diagnosis?
Never it is not appropriate to use an e code as a primary or principal diagnosis
How should E codes be assigned if there are more than one?
The first listed e code should correspond to the most serious diagnosis
In descending order what is the hierarchy of e codes
First adult and child abuse second terrorism third cataclysmic events fourth transport accidents fifth activity sixth external causes seventh place of occurrence
When would a late effect E code be used?
When the condition for the diagnosis is a late effect
When can you add a diagnosis for high blood pressure or hypertension?
When it is documented by the physician. You cannot and the diagnosis based on reviewing the blood pressure reading.
For what period of time is a traumatic fracture category 800-829 coded ?
For as long as the patient is receiving active treatment
How would you code bilateral glaucoma with the same stage?
Assign one code for the type of glaucoma in one code for the stage.
How would you code bilateral glaucoma with each I being different types and different stages?
Assign one code for the type of glaucoma , and one code for the highest, stage
What is right sided failure secondary to left sided failure classified as?
Congestive heart failure
When is hematuria coded separately?
When it is excessive and has been documented by the physician as excessive.
Many conditions in the genitourinary system have hematuria as an integral symptom.
When we can use code 791.2 hemoglobinuria?
When blood has been discovered in the urine via urine analysis. This would never be coded as hematuria.
What information is required for coding an HIV infection?
The physicians documentation the positive HIV test is not required
From which v-code category would you code an HIV-infected patients that is asymptomatic?
V08 do not use if aids has been mentioned
If the patient was previously diagnosed with HIV which categories with you never use
795.91 or V08
If a patient is admitted for an HIV related condition from what category would you code the principal diagnosis?
042
True or false: patient is admitted for a condition unrelated to the HIV (trauma) , category 042 is primarily followed by the trauma related codes.
False traumatic injury would be coded as primary, categories 042 would be subsequent
In the case of an obstetrics patient with the HIV infection what the subcategory would you code first?
647.6 X, followed by either 042 symptomatic or V08 asymptomatic as an additional code
If heart disease is stated as occurring with hypertension can you assume a cause-and-effect relationship?
No do not assume code it separately
True or false: Two code influenza H1n1 you must have a positive laboratory testing documented?
False the physicians documentation only need indicate the case is confirmed
When would you choose not to code a superficial injury such as an abrasion or contusion?
When there are more severe injuries of the same site
What is a late effect?
The message will condition that remains after the acute phase of illness or injury has passed
When would you want to omit the code for the acute phase of an illness or injury?
Any time that the late effect is being coded
What are the codes in category 438 used for?
He’s a combined codes the describe remaining deficits in patients who suffered cerebrovascular accident
When the infection does not have a combination code that includes an MRSA how would you code?
Code 1st the infection then code 0 41.12 for MRSA
What is the timeframe for myocardial infarction to be considered acute?
Duration of eight weeks or less or as documented by the physician
When coding a myocardial infarction what does the fourth digit indicate?
The area or wall involved
When coding a myocardial infarction what does the fifth digit indicate?
Whether the encounter is for the initial episode of care one, or the subsequent episode of care two or unspecified zero.
What would you do if a patient has a second infarction the time of an encounter for the original infarction?
Code for both
A patient is admitted solely for the purpose of chemotherapy immunotherapy or radiation therapy from which category would you code as the principal diagnosis?
Category V58,
If a patient has multiple malignant neoplasms how do you determine the principal diagnosis
Which ever site the treatment is directed towards is coded as primary. For example the patient is admitted for treatment of a secondary malignant neoplasm of the secondary neoplasm would be coded as primary.
True or false category v10 cannot be a primary diagnosis?
True
