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Diagnosis Code

R94.2 ABNORMAL RESULTS OF PULMONARY FUNCTION STUDIES


Code Information

Diagnosis Code: R94.2

Short Description: Abnormal results of pulmonary function studies

Long Description: Abnormal results of pulmonary function studies

The code R94.2 is VALID for claim submission

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)
        • R94.2 Abnormal results of pulmonary function studies

Code Version: 2022 ICD-10-CM


Synonyms

  • Abnormal airflow
  • Abnormal blood oxygen pressure
  • Abnormal blood oxygen pressure
  • Abnormal distribution of ventilation
  • Decreased blood oxygen pressure
  • Decreased Bohr effect
  • Decreased diffusion capacity of lung
  • Decreased forced expiratory volume
  • Decreased functional residual capacity
  • Decreased maximal voluntary ventilation
  • Decreased peak expiratory flow rate
  • Decreased total lung capacity
  • Decreased vital capacity
  • Diffusion capacity of lung above reference range
  • FEV1/FVC < 70 percent of predicted
  • FEV1/FVC > 70 percent of predicted
  • FEV1/FVC ratio abnormal
  • Finding of diffusion capacity of lung
  • Finding of diffusion capacity of lung
  • Forced expired volume - finding
  • Forced expired volume - finding
  • Forced vital capacity - finding
  • Forced vital capacity - finding
  • Forced vital capacity below reference range
  • FVC - forced vital capacity abnormal
  • High airway pressure
  • Increased blood oxygen pressure
  • Increased Bohr effect
  • Increased forced expiratory volume
  • Increased functional residual capacity
  • Increased maximal voluntary ventilation
  • Increased peak expiratory flow rate
  • Lung function restrictive
  • Lung function significantly obstructed
  • Lung function testing abnormal
  • Lung volume test abnormal
  • Peak expiratory flow rate - compliance moderate
  • Peak expiratory flow rate - compliance poor
  • Peak expiratory flow rate - finding
  • Peak expiratory flow rate - finding
  • Peak expiratory flow rate - finding
  • Peak expiratory flow rate - technique moderate
  • Peak expiratory flow rate - technique poor
  • Peak flow rate - finding
  • Peak flow rate - finding
  • Peak flow rate - finding
  • Peak flow rate - finding
  • Peak flow rate abnormal
  • Pendelluft
  • Regional ventilation differences
  • Regional ventilation differences due to gravity
  • Regional ventilation differences due to local airway resistance
  • Regional ventilation differences due to pleural pressure
  • Regional ventilation differences due to unequal bronchial pathway lengths
  • Regional ventilation differences due to unequal compliance
  • Regional ventilation differences due to unequal stress
  • Respiratory flow rate abnormal
  • Respiratory flow rate above reference range
  • Respiratory flow rate below reference range
  • Respiratory quotient - finding
  • Respiratory quotient abnormal
  • Serial peak expiratory flow rate abnormal
  • Spirometry reversibility finding
  • Spirometry reversibility positive
  • Vital capacity - finding

Diagnostic Related Group(s)

The code R94.2 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Respiratory System Diagnoses With Mcc (205)
  • Other Respiratory System Diagnoses Without Mcc (206)

References to Index of Diseases and Injuries

The code R94.2 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Reduced ventilatory capacity
    • Reduced vital capacity

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
R94.2 Right Arrow 794.2 Abn pulmonary func study

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
R94 Abnormal results of function studies
R94.0 Abnormal results of function studies of central nervous system
R94.01 Abnormal electroencephalogram [EEG]
R94.02 Abnormal brain scan
R94.09 Abnormal results of other function studies of central nervous system
R94.1 Abnormal results of function studies of peripheral nervous system and special senses
R94.11 Abnormal results of function studies of eye
R94.110 Abnormal electro-oculogram [EOG]
R94.111 Abnormal electroretinogram [ERG]
R94.112 Abnormal visually evoked potential [VEP]
R94.113 Abnormal oculomotor study
R94.118 Abnormal results of other function studies of eye
R94.12 Abnormal results of function studies of ear and other special senses
R94.120 Abnormal auditory function study
R94.121 Abnormal vestibular function study
R94.128 Abnormal results of other function studies of ear and other special senses
R94.13 Abnormal results of function studies of peripheral nervous system
R94.130 Abnormal response to nerve stimulation, unspecified
R94.131 Abnormal electromyogram [EMG]
R94.138 Abnormal results of other function studies of peripheral nervous system
R94.3 Abnormal results of cardiovascular function studies
R94.30 Abnormal result of cardiovascular function study, unspecified
R94.31 Abnormal electrocardiogram [ECG] [EKG]
R94.39 Abnormal result of other cardiovascular function study
R94.4 Abnormal results of kidney function studies
R94.5 Abnormal results of liver function studies
R94.6 Abnormal results of thyroid function studies
R94.7 Abnormal results of other endocrine function studies
R94.8 Abnormal results of function studies of other organs and systems

This page was last updated on: 10/1/2023

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