F10.99
Alcohol use, unspecified with unspecified alcohol-induced disorder
HCC risk adjustment mapping
CMS-HCC ESRD V24
Substance Use Disorder, Moderate/Severe, or Substance Use with Complications
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
code for blood alcohol level, if applicable (Y90.-)
disorders of psychological development
symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Official Guidelines for F10.99
FY 2026 ›Sections that reference F10.99
- I.B.14Documentation by Clinicians Other than the Patient's ProviderConventions & general rules
… the associated diagnosis (such as overweight, obesity, acute stroke, pressure ulcer, or a condition classifiable to category F10, Alcohol related disorders) must be documented by the patient’s provider. …
- I.C.5.b.3)Psychoactive Substance Use, Unspecified
As with all other unspecified diagnoses, the codes for unspecified psychoactive substance use (F10.9-, F11.9-, F12.9-, F13.9-, F14.9-, F15.9-, F16.9-, F18.9-, F19.9-) should only be assigned based on provider documentation and …
- I.C.5.b.4)Medical Conditions Due to Psychoactive Substance Use, Abuse and Dependence
… the appropriate code from subcategory K85.2, Alcohol induced acute pancreatitis, and the appropriate code from subcategory F10.2, such as code F10.20, Alcohol dependence, uncomplicated. …
- I.C.5.b.5)Blood Alcohol Level
… be assigned when this information is documented and the patient’s provider has documented a condition classifiable to category F10, Alcohol related disorders. …
- I.C.15.l.1)Alcohol use during pregnancy, childbirth and the puerperiumChapter 15
… A secondary code from category F10, Alcohol related disorders, should also be assigned to identify manifestations of the alcohol use.
- I.C.5.b.1)In Remission
Selection of codes describing “in remission” for categories F10-F19, Mental and behavioral disorders due to psychoactive substance use (categories F10-F19 with -.11, -.21, -.91) requires the …
Sections whose FY 2026 text names F10.99, its F10 category, or a range containing it — the chapter guidance above is the authoritative source.