CPC Exam Dumps : Certified Professional Coder (CPC) Exam

Procedure Coding (CPT®):

69910 – Labyrinthectomy, complete; transmastoid approach

Provider performed:

Mastoidectomy

Complete destruction/removal of semicircular canals, utricle, and saccule

This is a complete labyrinthectomy, not partial

69990 – Microsurgical techniques, requiring use of operating microscope

Separately reportable with otologic procedures

Modifier -51 not required (add-on code)

Diagnosis Coding (ICD-10-CM):

H81.391 – Peripheral vertigo, right ear

Correct laterality and condition

Why Other Options Are Incorrect:

69905 – Partial labyrinthectomy

R42 – Symptom code (dizziness), not used when definitive diagnosis exists

80324 – Drug test(s), definitive, qualitative or quantitative, LC/MS; acetaminophen

LC-MS = definitive testing

Acetaminophen is specifically identified by 80324

Why others are incorrect:

60143 / 80299 – Therapeutic drug assays (obsolete or nonspecific)

B0329 – HCPCS code (not appropriate here)

The CPT® codes for skin biopsies depend on the method used and the location of each lesion. Here, the scenario includes:

1. Two punch biopsies on the trunk: CPT® code 11104 is used for a full-thickness punch biopsy of the skin, and 11104 x 2 is appropriate since two lesions on the trunk were sampled.

2. One partial-thickness shave biopsy on the forehead: CPT® code 11102 is used for a tangential (shave) biopsy, which captures a partial-thickness sample, appropriate for the forehead lesion.

Explanation of other options:

B. 11104, 11105, 11103: Incorrect, as 11105 is an add-on for additional punch biopsies at separate sites but not used here.

C. 11104, 11103 x 2: 11103 is an add-on code for additional shave biopsies, which does not apply to the punch biopsies on the trunk.

D. 11104, 11102 x 2: Incorrect, as 11102 is only used for the shave biopsy, not for the punch biopsies.