Assign Anesthesia Codes - Certified Professional Coder CPC

1. Anesthesia is provided for burn excision of a wound covering 6% of total body surface area (TBSA). Which CPT® anesthesia code covers burn procedures involving between 4% and 9% TBSA?
   Answer: 01952 CPT® 01952 covers anesthesia for burn excision or debridement involving between 4% and 9% TBSA. Code 01951 covers less than 4% TBSA; add-on code 01953 covers each additional 9% TBSA or part thereof beyond the first 9%. Code 01958 covers obstetric procedures. For a 6% TBSA burn, 01952 is the primary anesthesia code.
2. A patient requires anesthesia for a lumbar laminectomy. Which CPT® anesthesia code range covers procedures on the spine and spinal cord?
   Answer: 00600-00670 CPT® anesthesia codes 00600-00670 cover procedures on the spine and spinal cord, including laminectomy. Code 00630 covers procedures in the lumbar region; 00640 covers lumbar spine manipulation. The thorax surface (00400), intrathoracic (00500), and upper abdominal (00700) ranges do not include spinal cord procedures. The spine range (00600-00670) is the correct section.
3. A patient requires anesthesia for a diagnostic bronchoscopy. Which CPT® anesthesia code range covers intrathoracic procedures?
   Answer: 00500-00580 CPT® anesthesia codes 00500-00580 cover intrathoracic procedures, including bronchoscopy. The specific code for bronchoscopy anesthesia falls within this range — for example, 00520 covers anesthesia for closed chest procedures not otherwise specified, which includes diagnostic bronchoscopy. The thorax surface codes (00400-00474) cover chest wall and breast procedures, not intrathoracic airways. The 00600-00670 range covers spine and spinal cord procedures.
4. A patient requires anesthesia for a cardiac catheterization performed in an interventional suite. Which CPT® anesthesia code range covers radiological and cardiovascular imaging procedures?
   Answer: 01916-01936 CPT® anesthesia codes 01916-01936 cover anesthesia for radiological and cardiovascular imaging procedures. Code 01920 covers anesthesia for cardiac catheterization including coronary angiography. These codes apply to procedures in catheterization labs and interventional suites. The open cardiac surgery codes (00560-00580) cover surgical procedures on the heart, not catheterization imaging procedures.
5. Anesthesia is provided for a radical hysterectomy for cervical cancer. Which CPT® anesthesia code covers radical hysterectomy?
   Answer: 00846 CPT® 00846 covers anesthesia for radical hysterectomy and is found in the 00800-00882 lower abdomen range. Code 00840 covers other intraperitoneal lower abdominal procedures; 00900 covers procedures on the male genitalia; 00944 covers vaginal hysterectomy approaches. Radical hysterectomy is an abdominal gynecologic procedure specifically designated 00846.
6. A patient requires anesthesia for a diagnostic lumbar puncture (spinal tap) for cerebrospinal fluid analysis. Which CPT® anesthesia code covers this procedure?
   Answer: 00635 CPT® 00635 covers anesthesia for diagnostic or therapeutic lumbar puncture procedures. Code 00630 covers procedures in the lumbar region (e.g., laminectomy, discectomy); 00640 covers manipulation of the lumbar spine; 00670 covers complex spine or spinal cord procedures. Lumbar puncture for CSF analysis is a diagnostic procedure specifically designated 00635.
7. A patient requires anesthesia for an off-pump coronary artery bypass graft (CABG) — a beating-heart procedure performed without cardiopulmonary bypass. Which CPT® anesthesia code is reported?
   Answer: 00566 CPT® 00566 covers anesthesia for direct coronary artery bypass grafting without pump oxygenator (off-pump CABG). Code 00562 covers anesthesia for cardiac procedures using pump oxygenator (on-pump CABG); 00560 covers general heart and pericardium procedures; 00580 covers heart transplantation. The presence or absence of cardiopulmonary bypass is the primary differentiator in cardiac anesthesia code selection.
8. A patient undergoes open reduction and internal fixation (ORIF) of a distal radius fracture at the wrist. Which CPT® anesthesia code range covers procedures on the forearm, wrist, and hand?
   Answer: 01810-01860 CPT® anesthesia codes 01810-01860 cover procedures on the forearm, wrist, and hand. Code 01830 covers open wrist procedures; 01820 covers closed treatment of distal radial fracture. The upper arm and elbow range (01710-01782) and lower leg range (01300-01444) cover different regions. The distal radius at the wrist falls in the forearm, wrist, and hand range (01810-01860).
9. A patient requires anesthesia for a total thyroidectomy. Which CPT® anesthesia code covers thyroid surgery?
   Answer: 00320 CPT® 00320 covers anesthesia for procedures on the esophagus, thyroid, larynx, trachea, and lymphatic system of the neck, not otherwise specified (age 1 year or older). A total thyroidectomy falls within this category. Code 00322 is specifically for needle biopsy of the thyroid — not for open thyroid surgery. Code 00300 covers integument, muscles, and nerves of the head and neck not otherwise specified; 00350 covers major vessels of the neck.
10. A patient undergoes a cesarean delivery under anesthesia. Which CPT® anesthesia code range covers obstetric procedures?
    Answer: 01958-01969 CPT® anesthesia codes 01958-01969 cover obstetric procedures. Code 01961 covers cesarean delivery; 01960 covers vaginal delivery; 01968 covers neuraxial labor analgesia with conversion to cesarean. All obstetric anesthesia codes are in the 01958-01969 range, separate from the lower abdominal (00800) and perineal (00902) ranges.
11. Anesthesia is provided for a carotid endarterectomy. Which CPT® anesthesia code covers procedures on the major vessels of the neck?
    Answer: 00350 CPT® 00350 covers anesthesia for procedures on major vessels of the neck, including carotid endarterectomy, in the 00300-00352 neck range. Code 00322 covers thyroid and parathyroid surgery; 00400 covers thorax surface procedures; 00562 covers cardiac procedures with pump oxygenation. The specific code for major neck vessel surgery is 00350.
12. A patient undergoes anesthesia for a total knee replacement (TKR). Which CPT® anesthesia code is reported?
    Answer: 01402 CPT® 01402 covers anesthesia for total knee replacement. Code 01380 covers cast application; 01400 covers open or surgical arthroscopic knee procedures other than total replacement; 01404 covers disarticulation at the knee. Total knee arthroplasty has a specific code (01402) that distinguishes it from other open knee procedures.
13. A patient requires anesthesia for an inguinal hernia repair. Which CPT® anesthesia code specifically covers hernia repair in the lower abdomen?
    Answer: 00830 CPT® 00830 covers anesthesia for herniorrhaphy (hernia repair) in the lower abdomen, including inguinal, femoral, and umbilical hernias. Code 00840 covers other intraperitoneal lower abdominal procedures; 00846 covers radical hysterectomy; 00900 covers male genitalia procedures. Inguinal hernia repair is specifically designated 00830 in the lower abdominal anesthesia range.
14. A moribund patient not expected to survive without emergency surgery is taken to the operating room. Which two modifiers are most appropriate to append to the anesthesia code?
    Answer: P5 and 99140 Physical status modifier P5 designates a moribund patient not expected to survive without the operation. Qualifying circumstance code 99140 is also reported when emergency conditions complicate anesthesia. Together, P5 and 99140 reflect both the severity of the patient's condition and the emergent nature of the case, adding units to the anesthesia calculation.
15. A patient with well-controlled hypertension and mild asthma — both stable with no functional limitations — presents for elective surgery. Which physical status modifier applies?
    Answer: P2 Physical status modifier P2 designates a patient with mild systemic disease. Well-controlled hypertension and mild asthma represent mild systemic conditions without functional limitation. P1 is for a normal, healthy patient with no systemic disease; P3 is for severe systemic disease. The combination of two mild, well-controlled conditions places this patient in the P2 category.
16. Anesthesia is provided for repair of a cleft palate in a pediatric patient. Which CPT® anesthesia code covers palate repair?
    Answer: 00172 CPT® 00172 covers anesthesia for repair of cleft palate and is found in the 00100-00222 head procedure range. Code 00300 covers neck procedures; 00400 covers thorax surface procedures; 00500 covers intrathoracic procedures. Repair of the palate — a structure in the oral cavity — is correctly placed in the head (00100) anesthesia range.
17. A patient undergoes anesthesia for a transurethral resection of the prostate (TURP). Which CPT® anesthesia code is reported?
    Answer: 00914 CPT® 00914 covers anesthesia for TURP and is found in the 00902-00952 perineal range. Code 00830 covers herniorrhaphy (lower abdomen); 00840 covers other intraperitoneal lower abdominal procedures; 00920 covers procedures on the male external genitalia. TURP uses a transurethral approach to the prostate, placing it in the perineal section with code 00914.
18. A patient undergoes anesthesia for a total hip replacement. In which CPT® anesthesia code range would the appropriate code be found?
    Answer: 01200-01274 CPT® anesthesia codes 01200-01274 cover procedures on the pelvis and hip, including total hip arthroplasty (01214). The lower leg and ankle are covered by 01300-01444; the shoulder and axilla by 01610-01680; the upper arm and elbow by 01710-01782. Hip joint procedures fall in the 01200 series.
19. A procedure has 8 base units and anesthesia lasted 90 minutes. Using the standard 15-minute time unit convention, what is the total anesthesia allowable if the conversion factor is $90?
    Answer: $1,260 Formula: (Base Units + Time Units) × Conversion Factor. 90 minutes ÷ 15 minutes per unit = 6 time units. (8 base + 6 time) × $90 = 14 × $90 = $1,260. Base units reflect the relative complexity of the procedure; time units reflect the duration of anesthesia at one unit per 15 minutes. Answer A incorrectly uses 5 time units (75 min); answer D incorrectly adds an extra unit not supported by the documented time.
20. An epidural placed for labor analgesia is subsequently used for a cesarean section when the patient's labor fails to progress. Which CPT® anesthesia code is reported for this conversion scenario?
    Answer: 01968 CPT® 01968 covers anesthesia for cesarean delivery following neuraxial labor analgesia — specifically when an epidural placed for labor is converted or extended for a cesarean section. Code 01961 covers cesarean delivery without prior labor epidural; 01960 covers vaginal delivery; 01965 covers incomplete or complete abortion procedures. The labor-to-cesarean conversion must be captured with 01968.

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