R94.2 Abnormal results of pulmonary function studies

Billable ICD-10-CM code, FY2026.

Applicable to

• Reduced ventilatory capacity
• Reduced vital capacity

Applies from R94 Abnormal results of function studies

Includes

• abnormal results of radionuclide [radioisotope] uptake studies
• abnormal results of scintigraphy

MS-DRG index

Defines the logic of DRG(s) 205-206 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 794.2 Nonspecific abnormal results of pulmonary function study

Code annotations containing back-references to R94.2

Back-references to R94

• Type 1 Excludes: T88.7 Unspecified adverse effect of drug or medicament ("specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8)")

Diagnosis Index entries for R94.2

• Abnormal, abnormality, abnormalities › function studies › pulmonary
• Abnormal, abnormality, abnormalities › pulmonary › test results
• Diminished, diminution › vital capacity
• Findings, abnormal, inconclusive, without diagnosis › function study NEC › pulmonary
• Findings, abnormal, inconclusive, without diagnosis › scan NEC › lung
• Reduced › ventilatory or vital capacity

Nearby codes

• 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
• R94.2 Abnormal results of pulmonary function studies (this code)
• 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