DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 1

A15-A19 Tuberculosis (A15-A19)

Block A15-A19 groups 4 categories with 51 billable codes in FY2027.

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A15-A19 Tuberculosis (A15-A19)

Neighbouring blocks

Categories
4
Billable codes
51
CC codes
39
MCC codes
12
HCC V28 codes
0
New FY2027
0

Categories in A15-A19

  • A15

    Respiratory tuberculosis

    Assmann's focus NEC → A15.0

    • 7 billable codes
    • 7 CC
  • A17

    Tuberculosis of nervous system

    Tuberculomabrain → A17.81

    • 7 billable codes
    • 1 CC
    • 6 MCC
  • A18

    Tuberculosis of other organs

    Acnitis (primary) → A18.4

    • 32 billable codes
    • 31 CC
    • 1 MCC
  • A19

    Miliary tuberculosis

    Concato's disease (pericardial polyserositis) → A19.9

    • 5 billable codes
    • 5 MCC

Index main terms

  • Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) → A15, A17, A18, A19 (396 entries)
  • Fistula (cutaneous) → A15, A18 (13 entries)
  • Caries → A18 (11 entries)
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) → A17, A18 (10 entries)
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative → A18 (9 entries)
  • Disease, diseased → A18, A19 (7 entries)
  • Lupus → A18 (5 entries)
  • Adenopathy (lymph gland) → A15 (4 entries)
  • Adhesions, adhesive (postinfective) → A15, A17, A18 (4 entries)
  • Pleurisy (acute) (adhesive) (chronic) (costal) (diaphragmatic) (double) (dry) (fibrinous) (fibrous) (interlobar) (latent) (plastic) (primary) (residual) (sicca) (sterile) (subacute) (unresolved) → A15 (4 entries)
  • Stricture → A15, A18 (4 entries)
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) → A18 (3 entries)
  • Curvature → A18 (3 entries)
  • Erythema, erythematous (infectional) (inflammation) → A18 (3 entries)
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) → A18 (3 entries)

+140 more main terms; the search box finds them by word.

Block instructions

Includes

  • infections due to Mycobacterium tuberculosis and Mycobacterium bovis

Excludes1

  • congenital tuberculosis (P37.0) P37.0
  • nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-) R76.1
  • pneumoconiosis associated with tuberculosis, any type in A15 (J65) A15 J65
  • positive PPD (R76.11) R76.11
  • positive tuberculin skin test without active tuberculosis (R76.11) R76.11
  • sequelae of tuberculosis (B90.-) B90
  • silicotuberculosis (J65) J65

Use additional code

  • code, if applicable, for associated cachexia (E88.A) E88.A

Notes that also apply

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