AAPC Chapter 18 Practical Applications

Case Summaries

• CASE 1: Patient with fever not responding to antibiotics; involved testing for Methicillin Resistant Staphylococcus aureus (MRSA).

  • Codes: CPT® 87641, ICD-10-CM A49.02

• CASE 2: Consultation for carcinoma of the base of the tongue; multiple biopsies show no carcinoma.

  • Codes: CPT® 88323, ICD-10-CM C01

• CASE 3: Merkel cell carcinoma history; lymph node excision reveals high-grade neuroendocrine carcinoma.

  • Codes: CPT® 88321, ICD-10-CM C7A.1

• CASE 4: Abnormal Pap smear, further testing via FISH reveals no risk for severe cervical dysplasia.

  • Codes: CPT® 88367, 88373, ICD-10-CM R87.619

• CASE 5: Routine physical labs with results in normal ranges including metabolic panel and CBC.

  • Codes: CPT® 80048, 85027, ICD-10-CM Z00.00

• CASE 6: Peritoneal fluid analysis for a 26-year-old with ESRD shows no malignant cells.

  • Codes: CPT® 88104, ICD-10-CM E10.22, N18.6, Z99.2

• CASE 7: Surgical pathology report after amputation; shows ulceration and viable tissue margins.

  • Codes: CPT® 88307, 88311, ICD-10-CM L97.511

• CASE 8: Kidney and pancreas transplant patient with acute coagulative necrosis and renal arterial thrombosis.

  • Codes: CPT® 88307, 88300, ICD-10-CM T86.19, N28.0

• CASE 9: Heart transplant biopsy; no significant cellular rejection but positive for humoral/vascular rejection.

  • Codes: CPT® 88307 (x2), 88346, 88350 (x7), ICD-10-CM T86.21

• CASE 10: Multiple fungal cultures from urine, sputum, and blood; only Candida albicans isolated from sputum.

  • Codes: CPT® 87102, 87102-59, 87103, 87103-59, ICD-10-CM J18.9, R60.1, R31.9

This quiz focuses on the practical applications of clinical coding as outlined in Chapter 18 of the AAPC textbook. It covers scenarios such as laboratory test interpretations, patient indications, and methods for identifying infectious agents. Test your knowledge and understanding of these essential clinical coding principles.