FY2027
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Excludes1 pair

F80.0 vs R48.2

F80.0 and R48.2 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 F80.0
speech articulation impairment due to apraxia (R48.2)
F80.0

Phonological disorder

Billable
Chapter 5
Mental, Behavioral and Neurodevelopmental disorders
Section
F80-F89
Use when the record says
  • Dyslalia
  • Functional speech articulation disorder
  • Lalling
  • Lisping
  • Phonological developmental disorder
  • Speech articulation developmental disorder
  • Speech-sound disorder
Indexed under
  • Dyslalia (developmental)
  • Idioglossia
  • Lalling
  • Lisping
  • Disorder › speech-sound
R48.2

Apraxia

Billable
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Section
R47-R49
Indexed under
  • Apraxia (classic) (ideational) (ideokinetic) (ideomotor) (motor) (verbal)

These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.

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