For October 1st 2018, it appears they plan to delete M79.1 Mylagia which also has a current inclusion note of myofascial pain syndrome which is a common code for trigger point injections, they plan to replace it with M79.10, M79.11, M79.12, M79.18

https://www.cms.gov/Medicare/Coding/…ICD-10-CM.html

Revise from: 1 M5001 Cervical disc disorder w myelopathy, high cervical region Cervical disc disorder with myelopathy, high cervical region
Revise to: 1 M5001 Cervical disc disorder with myelopathy, high cervical region Cervical disc disorder with myelopathy, high cervical region
Revise from: 1 M5011 Cerv disc disorder w radiculopathy, high cervical region Cervical disc disorder with radiculopathy, high cervical region
Revise to: 1 M5011 Cerv disc disorder with radiculopathy, high cervical region Cervical disc disorder with radiculopathy, high cervical region
Revise from: 1 M5021 Other cervical disc displacement, high cervical region Other cervical disc displacement, high cervical region
Revise to: 1 M5021 Other cervical disc displacement, high cervical region Other cervical disc displacement, high cervical region
Revise from: 1 M5031 Other cervical disc degeneration, high cervical region Other cervical disc degeneration, high cervical region
Revise to: 1 M5031 Other cervical disc degeneration, high cervical region Other cervical disc degeneration, high cervical region
Revise from: 1 M5081 Other cervical disc disorders, high cervical region Other cervical disc disorders, high cervical region
Revise to: 1 M5081 Other cervical disc disorders, high cervical region Other cervical disc disorders, high cervical region
Revise from: 1 M5091 Cervical disc disorder, unspecified, high cervical region Cervical disc disorder, unspecified, high cervical region
Revise to: 1 M5091 Cervical disc disorder, unspecified, high cervical region Cervical disc disorder, unspecified, high cervical region
Delete: 1 M791 Myalgia Myalgia
Add: 0 M791 Myalgia Myalgia
Add: 1 M7910 Myalgia, unspecified site Myalgia, unspecified site
Add: 1 M7911 Myalgia of mastication muscle Myalgia of mastication muscle
Add: 1 M7912 Myalgia of auxiliary muscles, head and neck Myalgia of auxiliary muscles, head and neck
Add: 1 M7918 Myalgia, other site Myalgia, other site
Revise from: 0 M968 Oth intraop and postproc comp and disorders of ms sys, NEC Other intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified
Revise to: 0 M968 Other intraop and postproc comp and disorders of ms sys, NEC Other intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

Codes
71704 codes in icd10cm_order_2018.txt
71932 codes in icd10cm_order_2019.txt
279 additions
51 deletions
143 revisions
of which
128 revisions to both long and short titles
15 revisions to long title only
0 revisions to short title only