J4A
Header — not billableChronic lung allograft dysfunction
The ICD-10 code for chronic lung allograft dysfunction is J4A.
J4A is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Code also
Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.
- , if applicable, bronchiolitis obliterans syndrome (J44.81)
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- J40Bronchitis, not specified as acute or chronic
- J41Simple and mucopurulent chronic bronchitisnon-billable header
- J42Unspecified chronic bronchitis
- J43Emphysemanon-billable header
- J44Other chronic obstructive pulmonary diseasenon-billable header
- J45Asthmanon-billable header
- J47Bronchiectasisnon-billable header
- J4AChronic lung allograft dysfunctionnon-billable header