Pulmonologists treat conditions affecting the lungs and respiratory tract including COPD, asthma, pulmonary fibrosis, sleep apnea, and respiratory failure. This page covers the most common ICD-10-CM and CPT codes used in pulmonology practices and pulmonary function testing labs across the US.
COPD with acute exacerbation (J44.1) and with acute lower respiratory infection (J44.0) are distinct — J44.0 requires an additional code for the infection (J09–J22).
Asthma codes require documentation of severity (mild/moderate/severe) and persistence (intermittent/persistent) — unspecified codes are frequently down-coded by payers.
Spirometry (94010) and pre/post bronchodilator spirometry (94060) require physician interpretation to be billable under Part B.
Z99.81 (dependence on supplemental oxygen) is an important additional code for oxygen-dependent patients affecting HCC risk scores.
J44.0 is COPD with an acute lower respiratory infection (such as pneumonia or bronchitis) — code the infection separately. J44.1 is COPD with acute exacerbation not caused by an infection. The distinction guides treatment and affects DRG assignment in hospital settings.
What is the ICD-10 code for pulmonary fibrosis?
J84.10 covers pulmonary fibrosis, unspecified. For idiopathic pulmonary fibrosis (IPF), use J84.112. Documentation from imaging, PFTs, or biopsy is required to distinguish between the specific subtypes.
What CPT code is used for spirometry?
94010 is standard spirometry. 94060 adds pre- and post-bronchodilator measurements. Both require a physician-reviewed interpretation report to be billable under Medicare Part B.
When is G47.33 used?
G47.33 is Obstructive sleep apnea — used when diagnosed by polysomnography or home sleep test. It is distinct from snoring (R06.83) and central sleep apnea (G47.31). Use it as primary diagnosis when sleep apnea is the reason for the encounter.
How does OmniMD support pulmonology documentation?
OmniMD’s Pulmonology EHR includes spirometry result integration, asthma action plan templates, and COPD care pathway tools aligned with GOLD guidelines to streamline documentation and coding.
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