ICD-10-CM update: FY2021 diagnosis changes include addition of many ‘other’ M codes

Why This Topic Matters

Annual ICD-10-CM updates can affect documentation, code availability, and reporting workflows across many specialties. This overview helps readers quickly judge whether the changes are relevant to their patient population and coding responsibilities.

Article Sections

1. Overview of proposed FY2021 ICD-10-CM changes

   Summarizes the scope of the proposed annual update and the overall volume of changes across the code set.

2. Chapter 13 musculoskeletal expansions

   Covers broad additions affecting musculoskeletal diagnoses, including several condition groupings with expanded site-specific reporting options.

3. Lower leg juvenile osteochondrosis codes reorganized

   Describes a reorganization affecting juvenile osteochondrosis coding for the lower leg and the related documentation focus.

4. R codes for headaches get more specific

   Reviews proposed changes affecting headache-related symptom coding and nearby intracranial hypotension-related updates.

5. Other proposed FY2021 ICD-10-CM code changes

   Summarizes additional proposed updates across blood disorders, substance withdrawal, and injury/poisoning categories.

6. Proposed FY 2021 ICD-10-CM code changes by chapter

   Presents a chapter-by-chapter breakdown of proposed new, revised, and invalidated code counts.