Complete ICD-10-CM coding and documentation guide for icd-10 coding for pulmonary function test includes clinical validation requirements, medical necessity guidelines, and coding policies.
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Essential facts and insights about ICD-10 Coding for Pulmonary Function Test
Use ICD-10 code J44.9 for chronic obstructive pulmonary disease, unspecified, ensuring proper documentation in clinical notes.
Additional codes that may be used with this diagnosis
Abnormal results of pulmonary function studies
Use as secondary when abnormal PFT results are present without a definitive diagnosis.
The ICD-10 code R94.2 is used for abnormal results of pulmonary function studies, often as a secondary code when no definitive diagnosis is present.
For COPD, use ICD-10 code J44.9, ensuring PFT results confirm the diagnosis with an FEV1/FVC ratio below 0.70.