R94.2
Billable codeAbnormal results of pulmonary function studies
The ICD-10 code for abnormal results of pulmonary function studies is R94.2.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Reduced ventilatory capacity
- Reduced vital capacity
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- R94.0Abnormal results of function studies of central nervous systemnon-billable header
- R94.1Abnormal results of function studies of peripheral nervous system and special sensesnon-billable header
- R94.3Abnormal results of cardiovascular function studiesnon-billable header
- R94.4Abnormal results of kidney function studies
- R94.5Abnormal results of liver function studies
- R94.6Abnormal results of thyroid function studies
- R94.7Abnormal results of other endocrine function studies
- R94.8Abnormal results of function studies of other organs and systems
- R94.2Abnormal results of pulmonary function studies
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7942
Associated MS-DRGs
R94.2 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.