R79.8
Non-billableOther specified abnormal findings of blood chemistry
Other specified abnormal findings of blood chemistry
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- asymptomatic hyperuricemia (E79.0)
- hyperglycemia NOS (R73.9)
- hypoglycemia NOS (E16.2)
- neonatal hypoglycemia (P70.3-P70.4)
- specific findings indicating disorder of amino-acid metabolism (E70-E72)
- specific findings indicating disorder of carbohydrate metabolism (E73-E74)
- specific findings indicating disorder of lipid metabolism (E75.-)
Excludes 2
Conditions not included here, but the patient may have both
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
- abnormalities of lipids (E78.-)
- abnormalities of platelets and thrombocytes (D69.-)
- abnormalities of white blood cells classified elsewhere (D70-D72)
- coagulation hemorrhagic disorders (D65-D68)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
- hemorrhagic and hematological disorders of newborn (P50-P61)
Use Additional Code
Additional codes that should follow this code
- code to identify any retained foreign body, if applicable (Z18.-)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code R79.8?
ICD-10-CM code R79.8 represents "Other specified abnormal findings of blood chemistry". It is a non-billable header code — use a more specific child code for billing purposes.
Is R79.8 a billable code?
No, R79.8 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under R79.8.
What chapter is R79.8 in?
R79.8 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).
What codes cannot be used with R79.8?
R79.8 has Excludes1 notes indicating codes that cannot be used together with it, including: asymptomatic hyperuricemia (E79.0); hyperglycemia NOS (R73.9); hypoglycemia NOS (E16.2); and 4 more.
What are the subcategories under R79.8?
R79.8 has 4 child codes, including: R79.81 (Abnormal blood-gas level), R79.82 (Elevated C-reactive protein (CRP)), R79.83 (Abnormal findings of blood amino-acid level), R79.89 (Other specified abnormal findings of blood chemistry).
Are additional codes required with R79.8?
Yes, when using R79.8 you should also code: code to identify any retained foreign body, if applicable (Z18.-).
What are the UMLS CUIs for R79.8?
R79.8 is linked to 1 UMLS Concept Unique Identifier: C0478166. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.