DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A69 Other spirochetal infections

  • Header · not billable

A69 is not billable. The category heads 9 billable codes in FY2027, grouped under 5 subdivisions.

Index → code

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A65-A69 Other spirochetal diseases (A65-A69)
  3. A69 Other spirochetal infections
Billable codes
9
Subdivisions
5
CC / MCC codes
6 / 0
HCC V28 codes
1
New FY2027
0
Index entries
64

Codes in A69

  1. A69.0
    Necrotizing ulcerative stomatitis
    Billable
    Inclusion terms 4

    Inclusion terms

    • Cancrum oris
    • Fusospirochetal gangrene
    • Noma
    • Stomatitis gangrenosa
  2. A69.1
    Other Vincent's infections
    BillableCC
    Inclusion terms 7

    Inclusion terms

    • Fusospirochetal pharyngitis
    • Necrotizing ulcerative (acute) gingivitis
    • Necrotizing ulcerative (acute) gingivostomatitis
    • Spirochetal stomatitis
    • Trench mouth
    • Vincent's angina
    • Vincent's gingivitis
  3. A69.2
    Lyme disease
    Header
    Inclusion terms 1

    Inclusion terms

    • Erythema chronicum migrans due to Borrelia burgdorferi
  4. A69.20
    Lyme disease, unspecified
    BillableCC
  5. A69.21
    Meningitis due to Lyme disease
    BillableCC
  6. A69.22
    Other neurologic disorders in Lyme disease
    BillableCC
    Inclusion terms 3

    Inclusion terms

    • Cranial neuritis
    • Meningoencephalitis
    • Polyneuropathy
  7. A69.23
    Arthritis due to Lyme disease
    BillableCC92
  8. A69.29
    Other conditions associated with Lyme disease
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Myopericarditis due to Lyme disease
  9. A69.8
    Other specified spirochetal infections
    Billable
  10. A69.9
    Spirochetal infection, unspecified
    Billable

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

Block A65-A69 instructions (Excludes2 2): printed on the block page.

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

Index entries

  • Cancrum oris → A69.0
  • Noma (gangrenous) (hospital) (infective) → A69.0
  • Fusospirillosis (mouth) (tongue) (tonsil) → A69.1
  • Plaut (-Vincent) disease → A69.1
  • Vincent's infection (angina) (gingivitis) → A69.1
  • Lyme disease → A69.20
  • Bronchospirochetosis → A69.8
  • Castellani's disease → A69.8
  • Spirochetosis → A69.9
  • Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)fusospirochetal → A69.0
  • Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)mouth → A69.0
  • Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)stomatitis → A69.0
  • Necrosis, necrotic (ischemic)stomatitis (ulcerative) → A69.0
  • Noma (gangrenous) (hospital) (infective)mouth → A69.0
  • Stomatitis (denture) (ulcerative)gangrenous → A69.0
  • Stomatitis (denture) (ulcerative)necrotizing ulcerative → A69.0
  • Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor)pseudomembranous → A69.1
  • Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor)Vincent's → A69.1
  • Gingivitisnecrotizing ulcerative (acute) → A69.1
  • GingivitisVincent's → A69.1
  • Gingivostomatitisnecrotizing ulcerative (acute) → A69.1
  • Infection, infected, infective (opportunistic)Vincent's (gum) (mouth) (tonsil) → A69.1
  • Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative)Vincent's → A69.1
  • Laryngotracheitis (acute) (Infectional) (infective) (viral)Vincent's → A69.1
  • Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)fusospirochetal → A69.1
  • Stomatitis (denture) (ulcerative)spirochetal → A69.1
  • Stomatitis (denture) (ulcerative)ulceromembranous → A69.1
  • Stomatitis (denture) (ulcerative)Vincent's → A69.1
  • Tonsillitis (acute) (catarrhal) (croupous) (follicular) (gangrenous) (infective) (lacunar) (lingual) (malignant) (membranous) (parenchymatous) (phlegmonous) (pseudomembranous) (purulent) (septic) (subacute) (suppurative) (toxic) (ulcerative) (vesicular) (viral)Vincent's → A69.1
  • Trenchmouth → A69.1
  • Vincent's infection (angina) (gingivitis)stomatitis NEC → A69.1
  • Disease, diseasedLyme → A69.20
  • Erythema, erythematous (infectional) (inflammation)chronicum migrans (Borrelia burgdorferi) → A69.20
  • Infection, infected, infective (opportunistic)Borrelia bergdorfi → A69.20
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)Castellani's → A69.8
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)spirochetal NEC → A69.8
  • BronchospirochetosisCastellani → A69.8
  • Disease, diseasedCastellani's → A69.8
  • Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)spirochetal NEC → A69.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)spirochetal NEC → A69.8

24 more, longer entries are not listed; the search box finds them by word.

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