ICD-10-CM 2027
ICD-10 code for Transparency
From the official ICD-10-CM alphabetic index entry “Transparency, lung, unilateral”. Page updated September 29, 2026.
About coding Transparency
The ICD-10-CM code for Transparency is J43.0 (Unilateral pulmonary emphysema [MacLeod's syndrome]).
Within J43 (emphysema), J43.0 is specifically for unilateral pulmonary emphysema [MacLeod's syndrome]. Related codes cover Panlobular emphysema (J43.1), Centrilobular emphysema (J43.2), other emphysema (J43.8) and unspecified (J43.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 190 (Chronic Obstructive Pulmonary Disease with MCC, relative weight 1.0748), DRG 191 (Chronic Obstructive Pulmonary Disease with CC, relative weight 0.8261) and DRG 192 (Chronic Obstructive Pulmonary Disease without CC/MCC, relative weight 0.6288), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Transparency ICD-10 codes
What is the ICD-10 code for Transparency?
- J43.0 — Unilateral pulmonary emphysema [MacLeod's syndrome].
Is J43.0 billable?
- Yes. J43.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J43.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J43.0 as a principal diagnosis.
Is J43.0 a CC or MCC?
- No. J43.0 is neither a CC nor an MCC under MS-DRG v44.0.