R79.81
BillableAbnormal blood-gas level
Abnormal blood-gas level
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.-)
Also Known As / Clinical Terms
SNOMED CT
- Hypocapnaemia61031008
- Hypocapnemia61031008
- Hypocapnia61031008
- Hypocarbia61031008
- Abnormal blood oxygen pressure123821009
- Blood oxygen level abnormal167026000
- Blood oxygen level outside reference range167026000
- Arterial carbon dioxide abnormal167030002
- Arterial carbon dioxide outside reference range167030002
- Blood gases abnormal312391003
- Blood gases outside reference range312391003
- Arterial carbon dioxide tension373677008
- Arterial partial pressure of carbon dioxide373677008
- Finding of arterial partial pressure of carbon dioxide373677008
- PaCO2 - Arterial carbon dioxide tension373677008
- paCO2 - Arterial partial pressure of carbon dioxide373677008
- Finding of oxygen saturation447755005
- Abnormal arterial blood gas448531004
- Arterial blood gas outside reference range448531004
- Low oxygen saturation449171008
- Oxygen saturation below reference range449171008
- Finding of arterial blood pH1148588005
- Finding of venous blood pH1148589002
- Venous blood pH outside reference range1148592003
- Arterial blood pH outside reference range1148593008
- Blood oxygen concentration below reference range1157018000
- Arterial partial pressure of carbon dioxide above reference range1187183007
- Arterial partial pressure of carbon dioxide below reference range1187184001
- Oxygen saturation above reference range1351951002
- Oxygen saturation in arterial blood above reference range1351952009
- SaO2 (arterial oxygen saturation) above reference range1351952009
Frequently Asked Questions
What is the ICD-10 code for abnormal blood-gas level?
The ICD-10-CM code for abnormal blood-gas level is R79.81. The full clinical description is "Abnormal blood-gas level". R79.81 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code R79.81 mean?
ICD-10-CM code R79.81 represents "Abnormal blood-gas level". It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.
Is R79.81 a billable code?
Yes, R79.81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is R79.81 in?
R79.81 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).
What codes cannot be used with R79.81?
R79.81 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.
Are additional codes required with R79.81?
Yes, when using R79.81 you should also code: code to identify any retained foreign body, if applicable (Z18.-).
What SNOMED CT codes does R79.81 map to?
R79.81 maps to 18 SNOMED CT concepts: 448531004, 123821009, 1148593008, 167030002, 373677008, and 13 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for R79.81?
R79.81 is linked to 1 UMLS Concept Unique Identifier: C0476337. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.