ICD-10-CM 2027
ICD-10 code for emphysema
From the official ICD-10-CM alphabetic index entry “Emphysema (atrophic) (bullous) (chronic) (interlobular) (lung) (obstructive) (pulmonary) (senile) (vesicular)”. Page updated September 29, 2026.
About coding emphysema
The ICD-10-CM code for emphysema is J43.9 (Emphysema, unspecified). The official index lists 29 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J43.9.
Within J43, choose J43.9 (unspecified) only when documentation doesn't support a more specific option: unilateral pulmonary emphysema [MacLeod's syndrome] (J43.0), Panlobular emphysema (J43.1), Centrilobular emphysema (J43.2) and other emphysema (J43.8).
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.
More specific emphysema codes (official index)
- cellular tissue (traumatic) T79.7 — Traumatic subcutaneous emphysema
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- centrilobular J43.2 — Centrilobular emphysema
- compensatory J98.3 — Compensatory emphysema
- congenital (interstitial) P25.0 — Interstitial emphysema originating in the perinatal period
- conjunctiva H11.89 — Other specified disorders of conjunctiva
- connective tissue (traumatic) T79.7 — Traumatic subcutaneous emphysema
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- due to chemicals, gases, fumes or vapors J43 — Emphysema
- eyelid (s)
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- traumatic T79.7 — Traumatic subcutaneous emphysema
- interstitial J98.2 — Interstitial emphysema
- congenital P25.0 — Interstitial emphysema originating in the perinatal period
- perinatal period P25.0 — Interstitial emphysema originating in the perinatal period
- laminated tissue T79.7 — Traumatic subcutaneous emphysema
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- mediastinal J98.2 — Interstitial emphysema
- newborn P25.2 — Pneumomediastinum originating in the perinatal period
- orbit, orbital
- panacinar J43.1 — Panlobular emphysema
- panlobular J43.1 — Panlobular emphysema
- specified NEC J43.8 — Other emphysema
- subcutaneous (traumatic) T79.7 — Traumatic subcutaneous emphysema
- nontraumatic J98.2 — Interstitial emphysema
- postprocedural T81.82 — Emphysema (subcutaneous) resulting from a procedure
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- surgical T81.82 — Emphysema (subcutaneous) resulting from a procedure
- thymus (gland) (congenital) E32.8 — Other diseases of thymus
- traumatic (subcutaneous) T79.7 — Traumatic subcutaneous emphysema
- unilateral J43.0 — Unilateral pulmonary emphysema [MacLeod's syndrome]
Common questions about emphysema ICD-10 codes
What is the ICD-10 code for emphysema?
- J43.9 — Emphysema, unspecified. More specific codes apply when the documentation supports them: T79.7, T81.82, J43.2, J98.3 and others below.
What is the ICD-10 code for cellular tissue emphysema?
- T79.7 — Traumatic subcutaneous emphysema (header code; choose a more specific subcode).
What is the ICD-10 code for centrilobular emphysema?
- J43.2 — Centrilobular emphysema.
What is the ICD-10 code for compensatory emphysema?
- J98.3 — Compensatory emphysema.
What is the ICD-10 code for congenital emphysema?
- P25.0 — Interstitial emphysema originating in the perinatal period.
What is the ICD-10 code for conjunctiva emphysema?
- H11.89 — Other specified disorders of conjunctiva.
What is the ICD-10 code for connective tissue emphysema?
- T79.7 — Traumatic subcutaneous emphysema (header code; choose a more specific subcode).
Is J43.9 billable?
- Yes. J43.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J43.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J43.9 as a principal diagnosis.
Is J43.9 a CC or MCC?
- No. J43.9 is neither a CC nor an MCC under MS-DRG v44.0.