Excludes1 pair

L65.0 vs L67-

L65.0 and L67 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on L67
telogen effluvium (L65.0)
L65.0

Telogen effluvium

Billable
Chapter 12
Diseases of the skin and subcutaneous tissue
Section
L60-L75
Indexed under
  • Alopecia › postpartum
  • Effluvium › telogen
L67

Hair color and hair shaft abnormalities

Not billable
Chapter 12
Diseases of the skin and subcutaneous tissue
Section
L60-L75

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027