Final answer:
The correct code assignment for a patient admitted and discharged with chest pain, and a final diagnosis of 'Rule out GERD,' would be the code for chest pain (R07.9) as the principal diagnosis, and the additional code for GERD (K21.9) as a secondary diagnosis.
Step-by-step explanation:
The correct code assignment for a patient admitted and discharged with chest pain, and a final diagnosis of 'Rule out GERD,' would be the code for chest pain (R07.9) as the principal diagnosis, and the additional code for GERD (K21.9) as a secondary diagnosis.
To accurately assign the correct codes, it is important to review the patient's medical records thoroughly, including any diagnostic tests or procedures performed, and consult the official ICD-10-CM coding guidelines and code descriptions. The primary topic of this question is the correct coding for a patient with suspected GERD after being admitted and discharged with chest pain.