A52.73

Symptomatic late syphilis of other respiratory organs

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 8 never code together

A50-A64block

Excludes1

nonspecific and nongonococcal urethritis (N34.1)N34.1
Reiter's disease (M02.3-)M02.3-

Excludes2

human immunodeficiency virus [HIV] disease (B20)B20

A00-B99chapter

Excludes1

certain localized infections - see body system-related chapters

Excludes2

carrier or suspected carrier of infectious disease (Z22.-)Z22.-
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
influenza and other acute respiratory infections (J00-J22)J00-J22

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 2

A00-B99chapter

Includes

diseases generally recognized as communicable or transmissible

Use additional code

code to identify resistance to antimicrobial drugs (Z16.-)Z16.-

Index entries leading here 12

Deformity Q89.9
- nose (acquired) (cartilage) M95.0
  - syphilitic (congenital) A50.57
    - late A52.73
Syphilis, syphilitic (acquired) A53.9
- epiglottis (late) A52.73
- eustachian tube A52.73
- larynx (late) A52.73
- mediastinum (late) A52.73
- nasal sinus (late) A52.73
- nose (late) A52.73
- perichondritis, larynx (late) A52.73
- pharynx (late) A52.73
- pleura (late) A52.73
- respiratory tract (late) A52.73
- sinus, sinusitis (late) A52.73
- thorax A52.73
- throat A52.73
- tonsil (lingual) (late) A52.73
- trachea (late) A52.73
Gumma (syphilitic) A52.79
- pharynx A52.73
- larynx A52.73
- trachea A52.73
- tonsil A52.73
- nasopharynx A52.73
- nose A52.73
Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) J04.0
- syphilitic (late) A52.73
Laryngotracheitis (acute) (Infectional) (infective) (viral) J04.2
- syphilitic (late) A52.73
Stenosis, stenotic (cicatricial) — see also Stricture
- larynx J38.6
  - syphilitic A52.73
- trachea J39.8
  - syphilitic A52.73
Perichondritis
- larynx J38.7
  - syphilitic A52.73
Stricture — see also Stenosis
- larynx J38.6
  - syphilitic A52.73
- nasopharynx J39.2
  - syphilitic A52.73
- nostril (anterior) (posterior) J34.89
  - syphilitic A52.73
- trachea J39.8
  - syphilitic A52.73
Mediastinitis (acute) (chronic) J98.51
- syphilitic A52.73
Perforation, perforated (nontraumatic) (of)
- nasal
  - septum J34.89
    - syphilitic A52.73
Rhinitis (atrophic) (catarrhal) (chronic) (croupous) (fibrinous) (granulomatous) (hyperplastic) (hypertrophic) (membranous) (obstructive) (purulent) (suppurative) (ulcerative) J31.0
- syphilitic A52.73
Tracheitis (catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral) J04.10
- syphilitic A52.73

Alongside this code 8 same parent — A52.7

A52.71 Late syphilitic oculopathy A52.72 Syphilis of lung and bronchus A52.74 Syphilis of liver and other viscera A52.75 Syphilis of kidney and ureter A52.76 Other genitourinary symptomatic late syphilis A52.77 Syphilis of bone and joint A52.78 Syphilis of other musculoskeletal tissue A52.79 Other symptomatic late syphilis

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: A52.7
Block: A50-A64
Siblings: 8

Present FY2024–FY2027.