A43.9 – Nocardiosis, unspecified
ICD-10-CM 2027 diagnosis code · Other bacterial diseases
ICD-10-CM code
A43.9
- Code
A43.9(claims format:A439)- Description
- Nocardiosis, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A30-A49 Other bacterial diseases
- Parent codes
- A43
Index terms for A43.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in A43
- A43.0 – Pulmonary nocardiosisBillable
- A43.1 – Cutaneous nocardiosisBillable
- A43.8 – Other forms of nocardiosisBillable
Frequently asked questions
What is ICD-10 code A43.9?
A43.9 is the ICD-10-CM code for nocardiosis, unspecified, in the block A30-A49 (Other bacterial diseases).
Is A43.9 a billable code?
Yes. A43.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A43.9 belong to?
It belongs to category A43 – Nocardiosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.