ICD-10-CM > R00-R99 > R70-R79 > R77 R77 Other abnormalities of plasma proteins Non-Billable/Non-Specific Type 1 Excludes disorders of plasma-protein metabolism (E88.0-) Codes R77.0Abnormality of albuminR77.1Abnormality of globulinR77.2Abnormality of alphafetoproteinR77.8Other specified abnormalities of plasma proteinsR77.9Abnormality of plasma protein, unspecified