M87.236 - Osteonecrosis due to previous trauma of unspecified ulna

The ICD 10 Code for Osteonecrosis due to previous trauma of unspecified ulna is listed as M87.236.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	M87.236
Description:	Osteonecrosis due to previous trauma of unspecified ulna
Diagnostic Related Groups (MS-DRG v30.0)	553 - Bone Diseases & Arthropathies W Mcc 554 - Bone Diseases & Arthropathies W/o Mcc

Chapter	Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block	Other osteopathies (M86-M90)
Parent	M87.23 - Osteonecrosis due to previous trauma of radius, ulna and carpus
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code:	733.49 - Aseptic necrosis of bone, other (approximate)
ICD-10-CM Siblings (same level / similar specificity) of M87.236:
M87.231 - Osteonecrosis due to previous trauma of right radius
M87.232 - Osteonecrosis due to previous trauma of left radius
M87.233 - Osteonecrosis due to previous trauma of unspecified radius
M87.234 - Osteonecrosis due to previous trauma of right ulna
M87.235 - Osteonecrosis due to previous trauma of left ulna
M87.237 - Osteonecrosis due to previous trauma of right carpus
M87.238 - Osteonecrosis due to previous trauma of left carpus
M87.239 - Osteonecrosis due to previous trauma of unspecified carpus