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CHAPTER 18

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  1. CHAPTER 18 DIGESTIVE SYSTEM

  2. Digestive System Divided by anatomic site from mouth to abdomen, peritoneum, and omentum + organs that aid digestive process Many bundled procedures Surgical procedures for open & endoscopic: Mouth & related structures Pharynx Adenoids Tonsils Esophagus Stomach Intestines Appendix Rectum and anus Liver Biliary tract Pancreas

  3. Lips (40490-40799) Vermilionectomy (40500) is shaving of lip Vermilion border: Area between lip and mucosal surface of mouth Large defects (40510-40527) Repaired with procedures such as transverse wedge excision (40510) Cheiloplasty is lip repair Full thickness repair (40650-40654) Cleft lip repair (40700-40761)

  4. Tongue and Floor of Mouth (41000-41599) Incision and drainage codes based on: Sublingual (under tongue) Submandibular (under mandibular) Masticator space (floor of mouth to hyoid bone) Extraoral (outside mouth) I&D of abscess, cyst, hematoma on floor of mouth

  5. Dentoalveolar Structures and Palate/Uvula Dentoalveolar structures (41800-41899) Bone (osseous) and soft structures of mouth Anchors teeth Palate/Uvula (42000-42299) Palate (roof of mouth) Uvula (pendulous structure at back of throat) Figure: 18.6 Alveolar mucosa. (From Liebgott B: The Anatomical Basis of Dentistry, ed 2, St. Louis, 2001, Mosby, Inc.)

  6. Salivary Gland and Ducts (42300-42699) Three salivary glands Parotid Submandibular Sublingual Codes divided initially by gland

  7. Pharynx, Adenoids, and Tonsils (42700-42999) Incision codes 42700-42725 initially divided on approach Intraoral External Tonsillectomy and adenoidectomy 42820-42836 Based on gland removed and age of patient Figure: 18.10, A & B

  8. Esophagus (43020-43499) Approaches—Incision, Excision Cervical Thoracic Abdominal Endoscopy Code esophageal dilation Know the device or method used How each device works Whether dilation was endoscopic or non-endoscopic Diagnostic endoscopy always included in surgical endoscopy

  9. Esophagoscopy (43200-43232) • Limited to esophagus only • Scope may be advanced into stomach but is short of pylorus • If scope transverses pyloric channel becomes an EGD (43234-43259) • If scope passes beyond second portion of duodenum, becomes an ERCP procedure (43260-43272)

  10. Stomach (43500-43999) Gastric bypass performed for morbid obesity Many different types, such as RNY May be performed via laparoscope Bariatric surgery (43770-43775) Gastric restrictive device (such as band) Figure: 18.13

  11. Intestines (Except Rectum) (44005-44799) Separate procedures common Colostomies always bundled with major procedure Unless code states otherwise Small intestine extends for 20 feet from pyloric sphincter to first part of large intestine Large intestine extends from end of ilium to anus, 4 parts (cecum, colon, sigmoid colon, and rectum)

  12. Endoscopy, Small Intestine and Stomal (44360-44397) Diagnostic bundled into surgical endoscopic Code to furthest extent of procedure

  13. Endoscopy Terminology Notes define specific terminology Code descriptions are specific regarding: Technique and depth of scope Esophagoscopy: Esophagus only Esophagogastroscopy: Esophagus to past diaphragm Esophagogastroduodenoscopy: Esophagus to beyond pyloric channel Read notes preceding 45300-45392 (Cont’d…)

  14. Endoscopy Terminology (…Cont’d) Sigmoidoscopy:Entire rectum, sigmoid colon, and may include part of the descending colon (up to 26 inches or 26-60 cm is visualized) Proctosigmoidoscopy: Rectum and sigmoid colon (6.25 cm is visualized) Colonoscopy:Entire colon, rectum to cecum, and may include terminal ileum (more than 60 cm visualized or 53 inches)

  15. Colon Procedures & Screening • For colonoscopy procedures determine how it was performed: • Through a colostomy • Through a colotomy • Through the rectum • For Colorectal Cancer Screening see HCPCS Level II codes: • G0107 • G0104 • G0105 • G0106 • G0120 • G0122

  16. Laparoscopy and Endoscopy Some subheadings have both laparoscopy (from outside) and endoscopy(from inside) procedures Example: Subheading Esophagus Endoscopy views inside Laparoscopy inserted through umbilicus, views from outside Laparoscopic bariatric surgery codes (43770-43774) Use of gastric band and/or subcutaneous port components

  17. Hemorrhoidectomy and Fistulectomy Codes (46221-46320) Divided by Anatomy Subcutaneous: no muscle involvement Submuscular: splinter muscle Complex fistulectomy involves excision/incision of multiple fistulas

  18. Abdomen, Peritoneum, and Omentum Subheading (49000-49999) Laparoscopy Diagnostic (49320) Surgical (49321-49323) Repair category contains hernia repair codes

  19. Hernia Codes Divided on Type Example: inguinal, femoral Initial or subsequent repair Age of patient Clinical presentation: Strangulated: Blood supply cut off Incarcerated: Cannot be returned to cavity (not reducible) Implantation of mesh or prosthesis is reported separately

  20. ConclusionCHAPTER 18 DIGESTIVE SYSTEM