Final answer:
The code for dilatation and curettage due to missed abortion at 11 weeks' gestation would be found in the ICD system under pregnancy complication codes.
Step-by-step explanation:
The code for dilatation and curettage for a missed abortion at 11 weeks' gestation would typically fall under the pregnancy complication codes in the International Classification of Diseases (ICD) system. Healthcare providers use these specific codes to document and charge for medical procedures. To accurately assign the right code, a provider would reference the most current ICD guidelines. It's important to note that the ICD has been updated several times, and the correct code would depend on which edition is being used (e.g., ICD-10). The actual codes are not provided here due to varying editions and the need to access the most current and applicable coding manual.