Operation for repair of a preexisting inguinal hernia is not necessarily Note: evidence of aggravation. For information on the presumption of soundness at entrance into Reference: service, see . Initial awards of SC for hemorrhoids are governed by customary rules for SC d. Considering Recurrence of included in . After SC is initially established, unless the award of SC for Hemorrhoids hemorrhoids was in error, consider recurrences after service as SC. For more information on reversing an erroneous decision, see Reference: 38 CFR 3.105(a) M21-1, Part III, Subpart iv, 2.B.4.a, and M21-1, Part IV, Subpart ii, 3.A.2. e. Causes of Hepatitis is the result of damage to the liver. The table below describes Liver Damage recognized causes of liver damage and provides examples of each cause. Cause of Liver Damage Example Infection Virus Systemic diseases Lupus Drugs Isoniazid Acetaminophen Phenytoin Toxic substances Alcohol f. Categories of There are three categories of hepatitis recognized for rating purposes. The Hepatitis table below describes each type of hepatitis and explains the transmission and Recognized for prognosis for each. Rating Purposes Type of Hepatitis Transmission Prognosis hepatitis A Virus fecal-oral route acute—seldom severe and (HAV), previously does not leave residuals called infectious hepatitis hepatitis B Virus blood products acute in 90-95 percent of (HBV), previously cases, but acute disease can sexual contact called serum hepatitis be severe and result in death chronic in 5-10 percent of cases
Note: Operation for repair of a preexisting inguinal hernia is not necessarily evidence of aggravation. Reference: For information on the presumption of soundness at entrance into service, see . d. Considering Recurrence of Hemorrhoids Initial awards of SC for hemorrhoids are governed by customary rules for SC included in . After SC is initially established, unless the award of SC for hemorrhoids was in error, consider recurrences after service as SC. Reference: For more information on reversing an erroneous decision, see 38 CFR 3.105(a) M21-1, Part III, Subpart iv, 2.B.4.a, and M21-1, Part IV, Subpart ii, 3.A.2. e. Causes of Liver Damage Hepatitis is the result of damage to the liver. The table below describes recognized causes of liver damage and provides examples of each cause. Cause of Liver Damage Example Infection Virus Systemic diseases Lupus Drugs Isoniazid Acetaminophen Phenytoin Toxic substances Alcohol f. Categories of Hepatitis Recognized for Rating Purposes There are three categories of hepatitis recognized for rating purposes. The table below describes each type of hepatitis and explains the transmission and prognosis for each. Type of Hepatitis Transmission Prognosis hepatitis A Virus (HAV), previously called infectious hepatitis fecal-oral route acute—seldom severe and does not leave residuals hepatitis B Virus (HBV), previously called serum hepatitis blood products sexual contact acute in 90-95 percent of cases, but acute disease can be severe and result in death chronic in 5-10 percent of cases