One of the fascinating things about Land Hermit Crabs is that they live in other creatures discarded shells. As they grow they will leave their old shell and find another larger one to move into. To assist the crabs with this, a few spare shells should be kept in the aquarium for such occasions.
The case involved multiple medical conditions and procedures is properly coded as Diagnosis Codes 366.16 (cataract) and 365.10 (glaucoma) and CPT Codes 66982-RT (right eye complex cataract surgery) and 66180-RT (right eye revision of an aqueous shunt/Aquaflo prosthesis).
Draft ICD-10-CM/PCS MS-DRGv28 Definitions Manual. Appendix E Operating Room Procedures and Procedure Code/MS-DRG Index. The Procedure Code/MS-DRG Index is a reference source of all ICD-9-CM procedure codes that affect MS-DRG assignment, the MDCs and MS-DRGs to which they are assigned, and a description of the surgical categories. The procedure codes are listed in code order with an * indicating the non-operating room procedures.