AAPC-COC Certified Outpatient Coder - Set 4 - Part 3

Correct Answer: The complication

Under the guideline for admission from outpatient surgery, when the reason for the inpatient admission is a complication, the complication is assigned as the principal diagnosis. This matches the rule for complications of surgery and other medical care. Option a is incorrect because this applies only when no complication or other condition is documented as the reason for the inpatient admission, which is not the situation here. Option b is incorrect because an unrelated condition becomes principal only when it, rather than a complication, is the documented reason for the inpatient admission. Option c is incorrect because symptom, sign and ill-defined condition codes are not used as principal diagnosis when a related definitive diagnosis has been established, as a complication would be.

Correct Answer: Not used as principal diagnosis

Codes for symptoms, signs, and ill-defined conditions from Chapter 18 are not used as principal diagnosis when a related definitive diagnosis has been established. The definitive diagnosis is sequenced as principal instead. Option a is incorrect because that rule covers interrelated conditions that each potentially meet the principal diagnosis definition, and a Chapter 18 sign does not qualify once a definitive diagnosis is established. Option b is incorrect because the guidelines base principal diagnosis on the condition established after study, so a presenting sign does not take priority once a related definitive diagnosis exists. Option d is incorrect because that treatment belongs to contrasting or comparative diagnoses documented as either/or, which is not the situation of a symptom with an established related diagnosis.

Correct Answer: Do not report it unless hospital policy requires

Resolved conditions and status-post procedures from previous admissions that have no bearing on the current stay are not reported. They are coded only if hospital policy requires it, and history codes apply only when the condition affects care. Option a is incorrect because principal diagnosis is the condition established after study as chiefly responsible for the admission, and a resolved earlier condition with no bearing on the stay does not meet that definition. Option b is incorrect because uncertain diagnosis rules cover conditions documented at discharge with terms such as probable or suspected, whereas this condition is resolved and documented as having no effect. Option c is incorrect because abnormal findings are laboratory, x-ray, pathologic or other diagnostic results, not a resolved diagnosis carried over from an earlier admission.

Correct Answer: Code it as if it were established

Under the Section III uncertain diagnosis guideline, a diagnosis documented at discharge as "probable," "suspected," or similar is coded as if it existed or was established, based on the workup and therapeutic approach. Option b is incorrect because hospital policy is mentioned only for resolved conditions and status-post procedures from previous admissions, which differ from a current uncertain diagnosis at discharge. Option c is incorrect because the inpatient guideline does not limit reporting to signs and symptoms; it tells the coder to treat the qualified diagnosis as existing. Option d is incorrect because the guideline already directs coding of terms such as "probable" at discharge, so no query is needed to replace the uncertain wording.

Correct Answer: As many times as the patient receives treatment

Under the Section IV outpatient guidelines, chronic diseases treated on an ongoing basis may be coded and reported as many times as the patient receives treatment and care for the condition. Option a is incorrect because history codes are secondary codes for conditions that no longer exist but affect care, whereas a chronic disease under ongoing treatment is still current. Option b is incorrect because chronic conditions may be sequenced as additional diagnoses, so reporting is not restricted to the first-listed position on the claim. Option d is incorrect because the guidelines place no limit of one report per episode; ongoing treatment of the chronic disease supports reporting at each treatment encounter.

Correct Answer: Report both the routine-testing Z code and the symptom code for the second test

When routine testing is performed during the same encounter as a test evaluating a sign, symptom, or diagnosis, both the Z code and the code describing the reason for the non-routine test are appropriate. A symptom code is acceptable without an established diagnosis. Option a is incorrect because the guidelines call for both codes when routine testing and a non-routine test occur together, so the routine-testing Z code cannot be dropped. Option b is incorrect because outpatient guidance accepts symptom codes when a diagnosis has not been established (confirmed), so waiting for confirmation is not required before reporting. Option c is incorrect because Z codes cover circumstances other than disease, but the fatigue prompting the second test still needs its own code under the same-encounter rule.

Correct Answer: The postoperative diagnosis, as most definitive

For ambulatory surgery, the coder reports the diagnosis for which surgery was performed. When the postoperative diagnosis is known to differ at confirmation, the postoperative diagnosis is selected because it is the most definitive. Option b is incorrect because a service Z code is listed first only in the chemotherapy or radiation therapy exception, and surgery is not covered by that exception. Option c is incorrect because the guidelines direct the coder away from the preoperative diagnosis once a different postoperative diagnosis is confirmed, because it is less definitive. Option d is incorrect because that subcategory is sequenced first only for patients receiving preoperative evaluations only, which describes a consultation encounter, not the surgery itself.

Correct Answer: The appropriate Z code for the service

For therapeutic-services-only encounters, the chemotherapy and radiation therapy exception directs that the appropriate Z code for the service is listed first. The diagnosis or problem for which the service is performed is listed second. Option a is incorrect because chronic conditions appear in the guideline as examples of other diagnoses that may be sequenced as additional diagnoses, so they do not take first position. Option b is incorrect because that subcategory belongs to patients receiving preoperative evaluations only, describing the pre-op consultation, and has no role in a chemotherapy or radiation therapy encounter. Option d is incorrect because the guideline places the condition for which the therapy is performed second, directly after the service code, so it is not listed first.

Correct Answer: any provider

The POA guidelines state that medical record documentation from any provider involved in the care and treatment of the patient may be used to support whether a condition was present on admission. Option a is incorrect because billing staff are not described as a source of clinical documentation; the guidelines point to providers involved in the patient's care and treatment. Option b is incorrect because a coder works jointly with the provider, but the guidelines treat provider documentation as the support, and the coder does not determine the condition's timing. Option c is incorrect because the guidelines do not limit POA support to one physician; documentation from any involved provider may be used, not just the attending.

Correct Answer: No required timeframe exists

The POA guidelines state there is no required timeframe for a provider to identify or document a condition as present on admission. A definitive diagnosis may take several days, which does not mean the condition was not present on admission. Option a is incorrect because the guidelines set no deadline of this kind; a definitive diagnosis may take several days after admission and the condition can still be present on admission. Option c is incorrect because the guidelines name no discharge deadline either; they direct the coder to query the provider when documentation at code assignment is unclear. Option d is incorrect because conditions developing during an outpatient encounter count as present on admission, but the guidelines do not require the provider to document anything before the order is written.