ICD-10-CM 2027
ICD-10 code for harmful use tobacco
From the official ICD-10-CM alphabetic index entry “Tobacco (nicotine) › harmful use”. Page updated September 29, 2026.
About coding harmful use tobacco
The ICD-10-CM code for harmful use tobacco is Z72.0 (Tobacco use).
Within Z72 (problems related to lifestyle), Z72.0 is specifically for tobacco use. Related codes cover lack of physical exercise (Z72.3), inappropriate diet and eating habits (Z72.4), high risk sexual behavior (Z72.5), gambling and betting (Z72.6), other problems related to lifestyle (Z72.8) and problem related to lifestyle, unspecified (Z72.9).
Don't report Z72.0 together with the conditions in its Excludes1 note: history of tobacco dependence (Z87.891), nicotine dependence (F17.2-), tobacco dependence (F17.2-) and tobacco use during pregnancy (O99.33-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for Z72.0)
Common questions about harmful use tobacco ICD-10 codes
What is the ICD-10 code for harmful use tobacco?
- Z72.0 — Tobacco use.
Is Z72.0 billable?
- Yes. Z72.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z72.0 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z72.0 a CC or MCC?
- No. Z72.0 is neither a CC nor an MCC under MS-DRG v44.0.