CCS Practice Test 10
10 free CCS practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Question 1 of 10
Coding Knowledge and SkillsHospital Observation Record
Observation admission and discharge notes (hospitalist)
A 57-year-old woman presented with substernal chest pain after dinner, lasting 2 hours. Placed in outpatient observation for serial cardiac biomarkers and monitoring. History: hypertension on amlodipine; hyperlipidemia on atorvastatin; both continued.
Troponin at 0, 3 and 6 hours, each drawn as a separate specimen, all within normal limits. ECG: normal sinus rhythm, no ischemic changes. Basic metabolic panel: potassium 3.1 mmol/L; potassium chloride 40 mEq by mouth ordered; repeat potassium 3.8 mmol/L.
Observation discharge note: Chest pain, likely gastroesophageal reflux; acute myocardial infarction ruled out. Start a proton pump inhibitor and follow up with the primary care physician.
| Test | Hour 0 | Hour 3 | Hour 6 | Reference range |
|---|---|---|---|---|
| Troponin I, high-sensitivity (ng/L) | 4 | 5 | 4 | < 14 |
| Potassium (mmol/L) | 3.1 | — | 3.8 | 3.5–5.1 |
Which ICD-10-CM codes should be reported for this observation encounter? Select all that apply.