ICD-10-CM > D50-D89 > D80-D89 > D81 > D81.3 > D81.32 D81.32 Adenosine deaminase 2 deficiency Billable/Specific Copy Code Copy Description Applicable To ADA2 deficiencyAdenosine deaminase deficiency type 2 Code Also , if applicable, any associated manifestations, such as:polyarteritis nodosa (M30.0)stroke (I63.-)