E84.9
BillableCystic fibrosis, unspecified
HCC Category Mapping
V28HCC 277 — Cystic Fibrosis
0.405V24HCC 110 — Cystic Fibrosis
0.473ESRDHCC 110 — Cystic Fibrosis
0.000RxHCCHCC 225 — Cystic Fibrosis
0.000What This Code Means
This code is used when a patient has cystic fibrosis but the specific organ systems affected are not documented or specified.
Coding Tips
- •Avoid using this unspecified code when possible; query the provider for clarification on which systems are involved (pulmonary, intestinal, etc.)
- •This code should only be used when documentation is truly insufficient to assign a more specific E84 code
Clinical Significance
Cystic fibrosis, unspecified should be used only when the specific manifestation is not documented. Given that CF is a multi-system disease, most patients will have documented manifestations that allow for more specific coding. This code still carries the same HCC value as the specific CF codes.
Documentation Requirements
- ✓Confirmed cystic fibrosis diagnosis by the treating provider
- ✓Documentation supporting CF diagnosis (sweat chloride, genetic testing, clinical criteria)
- ✓Active treatment plan (CFTR modulators, supportive care)
- ✓Verification that no specific manifestations are documented anywhere in the record
- ✓Query to provider for manifestation specification if possible
Commonly Confused Codes
E84.0 — Cystic fibrosis with pulmonary manifestations: preferred when any lung involvement is documentedE84.19 — Cystic fibrosis with other intestinal manifestations: preferred for GI involvementE84.8 — Cystic fibrosis with other manifestations: preferred for other organ system involvementQ44.6 — Cystic disease of liver: a separate condition from cystic fibrosis