R77 - Other abnormalities of plasma proteins
Excludes 1:
-disorders of plasma-protein metabolism E88.0)
R77.0 - Abnormality of albumin
R77.1 - Abnormality of globulin
R77.2 - Abnormality of alphafetoprotein
R77.8 - Other specified abnormalities of plasma proteins
R77.9 - Abnormality of plasma protein, unspecified