In echocardiogram interpretations, I see “LV diastolic dysfunction (pseudonormal filling)” frequently and need some advice as to what would be the correct ICD-10 code.

The 2018 ICD-10 code book takes me to the entries below:
Dysfunction – Heart: I51.89 (other ill-defined heart diseases) or Dysfunction – Ventricular: I51.9 (heart disease, unspecified)
Left: reversible following … I51.81 (Takotsubo syndrome)

A Google search for “pseudonormal filling” give me I50.30—unspecified diastolic (congestive) heart failure, but there is no choice for this in the code book.


Following the ICD-10-CM book and coding guidelines, we recommend the following: Dysfunctional, then ventricle, which takes you to I51.9 (heart disease unspecified). I think this is more specific than going to the heart entry.

Pseudonormal is a term describing the level of dysfunction. ICD-10-CM has nothing available for that term.

Google took you to I50.30 (Unspecified diastolic (congestive) heart failure), which is not the information given in the interpretation. Also under failure is ventricle, left (I50.1). We would agree with I50.1 if the physician documented failure, instead of dysfunction.


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