DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A43 Nocardiosis

  • Header · not billable

A43 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

  • Nocardiosis, nocardiasis → A43.9
  • Nocardiosis, nocardiasislung → A43.0
  • Nocardiosis, nocardiasiscutaneous → A43.1

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A30-A49 Other bacterial diseases (A30-A49)
  3. A43 Nocardiosis
Billable codes
4
Subdivisions
4
CC / MCC codes
4 / 0
HCC V28 codes
0
New FY2027
0
Index entries
7

Codes in A43

  1. A43.0
    Pulmonary nocardiosis
    BillableCC
  2. A43.1
    Cutaneous nocardiosis
    BillableCC
  3. A43.8
    Other forms of nocardiosis
    BillableCC
  4. A43.9
    Nocardiosis, unspecified
    BillableCC

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Nocardiosis, nocardiasis → A43.9
  • Nocardiosis, nocardiasislung → A43.0
  • Nocardiosis, nocardiasispneumonia → A43.0
  • Nocardiosis, nocardiasispulmonary → A43.0
  • Nocardiosis, nocardiasiscutaneous → A43.1
  • Nocardiosis, nocardiasisspecified site NEC → A43.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)nocardiosis, nocardiasis → A43.0

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy