Y90-Y99 — Supplementary factors related to causes of morbidity classified elsewhere
ICD-10-CM codes Y90-Y99 cover supplementary factors related to causes of morbidity classified elsewhere, within external causes of morbidity. The block holds 396 codes across 5 categories, of which 334 are billable and 62 are header codes that cannot be submitted on a claim.
Notes
Additional guidance from the ICD-10-CM tabular list.
- These categories may be used to provide supplementary information concerning causes of morbidity. They are not to be used for single-condition coding.