Convert to ICD-10-CM: 
552.20 converts approximately to:
- 2015/16 ICD-10-CM K43.6 Other and unspecified ventral hernia with obstruction, without gangrene
 ICD-9-CM Volume 2 Index entries containing back-references to 
552.20:
- Hernia, hernial (acquired) (recurrent) 553.9