All ICD10 Codes

R79

Non-Billable
ChapterR00–R99
Rankcategory
Official Description

Other abnormal findings of blood chemistry

Use a more specific code (3 billable, 1 non-billable)
R79.0Abnormal level of blood mineralR79.1Abnormal coagulation profileR79.8Other specified abnormal findings of blood chemistryhas subcodesR79.9Abnormal finding of blood chemistry, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

CH18 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)

R70-R79 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • abnormal findings on antenatal screening of mother (O28.-)
  • 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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • 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.-)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

Clinical Hierarchy

BillableHas subcodes
CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R70-R79Abnormal findings on examination of blood, without diagnosis (R70-R79)
R79Other abnormal findings of blood chemistryNot billable
R79.0Abnormal level of blood mineralBillable
R79.1Abnormal coagulation profileBillable
R79.8Other specified abnormal findings of blood chemistrySubcodes
R79.9Abnormal finding of blood chemistry, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R79:

blockR70-R79
Abnormal findings on examination of blood, without diagnosis (R70-R79)
View context instructions
chapterCH18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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