Version 2024

No Valid Principal Dx

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2024 ICD-10-CM Diagnosis Code R94.8

Abnormal results of function studies of other organs and systems

ICD-10-CM Code:: R94.8
ICD-10 Code for:: Abnormal results of function studies of organs and systems
Is Billable?: Yes - Valid for Submission
Chronic Condition Indicator: ^[1]: Not chronic
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Table of Contents

Code Information
Approximate Synonyms
Clinical Classification
Clinical Information
Tabular List of Diseases and Injuries
Index to Diseases and Injuries References
Diagnostic Related Groups Mapping
Convert to ICD-9 Code
Patient Education
Other Codes Used Similar Conditions
Code History

Code Classification

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
(R00–R99)
- Abnormal findings on diagnostic imaging and in function studies, without diagnosis
  (R90-R94)
  - Abnormal results of function studies
    (R94)

R94.8 is a billable diagnosis code used to specify a medical diagnosis of abnormal results of function studies of other organs and systems. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Basal metabolic rate - finding
Basal metabolic rate - finding
Basal metabolic rate - finding
Basal metabolic rate above reference range
Basal metabolic rate below reference range
Basal metabolic rate outside reference range
Cystometry outside reference range
Decreased amniotic fluid production
Decreased placental secretion of chorionic gonadotropin
Digestive function test abnormal
D-xylose absorption test abnormal
Fast metabolic rate
Finding of placental volume
Finding of placental volume
Finding related to placental secretion of chorionic gonadotropin
Finding related to placental secretion of chorionic gonadotropin
Finger-finger test abnormal
Finger-finger test finding
Gastric function test abnormal
Gastrointestinal test finding
Heel-shin test abnormal
Heel-shin test finding
Increased amniotic fluid production
Increased placental secretion of chorionic gonadotropin
Increased resting metabolic rate
Joint stress test finding
Joint stress test positive
Locomotor test finding
Metabolic function outside reference range
Musculoskeletal test abnormal
Neurological diagnostic procedure - abnormal
Placental function test abnormal
Placental volume above reference range
Placental volume below reference range
Slow metabolic rate
Special GIT test abnormal
Special urinary test abnormal
Special urinary test abnormal
Sweat test outside reference range
Teratogenesis
Urodynamic studies abnormal

Clinical Classification

Clinical Category is Abnormal findings without diagnosis
CCSR Category Code: SYM017
Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

Teratogenesis
the formation of congenital abnormalities.
Congenital Abnormalities
malformations of organs or body parts during development in utero.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.

Inclusion Terms

Abnormal basal metabolic rate BMR
Abnormal bladder function test
Abnormal splenic function test

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

- Abnormal, abnormality, abnormalities - See Also: Anomaly;
- - basal metabolic rate - R94.8
- - function studies
  - - bladder - R94.8
  - - pancreas - R94.8
  - - placenta - R94.8
  - - spleen - R94.8

- Depression (acute) (mental) - F32.A
- - basal metabolic rate - R94.8

- Elevated, elevation
- - basal metabolic rate - R94.8

- Findings, abnormal, inconclusive, without diagnosis - See Also: Abnormal;
- - function study NEC - R94.8
  - - bladder - R94.8
  - - pancreas - R94.8
  - - placenta - R94.8
  - - spleen - R94.8
- - scan NEC - R94.8
  - - bladder - R94.8
  - - bone - R94.8
  - - pancreas - R94.8
  - - placental - R94.8
  - - spleen - R94.8

- High
- - basal metabolic rate - R94.8

- Low
- - basal metabolic rate - R94.8

R94.8 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
695	KIDNEY AND URINARY TRACT SIGNS AND SYMPTOMS WITH MCC	11	1.196
696	KIDNEY AND URINARY TRACT SIGNS AND SYMPTOMS WITHOUT MCC	11	0.6921

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert R94.8 to ICD-9-CM

ICD-9-CM Code: 794.7 - Abn basal metabol study
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
ICD-9-CM Code: 794.9 - Abn function study NEC
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Urodynamic Testing

Urodynamic tests help diagnose lower urinary tract problems by showing how well your bladder, sphincters, and urethra work together to store and release urine.
[Learn More in MedlinePlus]

Code History

FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.