The ICD-10-CM coding a modification pack should emit for a diagnosis given its detail, or null when nothing can be refined (the caller falls back to the pack's flat code, e.g. K02.9 / K05.30).
null
Optional
The ICD-10-CM coding a modification pack should emit for a diagnosis given its detail, or
nullwhen nothing can be refined (the caller falls back to the pack's flat code, e.g. K02.9 / K05.30).