ICD-10-CM A18: Tuberculosis of other organs

ICD-10-CM Diagnosis Code (2025)

Official Description for A18

Tuberculosis of other organs

Coding Notes & Guidelines for A18

Excludes1: Not Coded Here

tuberculosis of intestine (A18.32)

Excludes2: Not Included Here
  • tuberculosis of bronchial and mediastinal lymph nodes (A15.4)
  • tuberculosis of mesenteric and retroperitoneal lymph nodes (A18.39)
  • tuberculous tracheobronchial adenopathy (A15.4)
Excludes2: Not Included Here
  • lupus erythematosus (L93.-)
  • systemic lupus erythematosus (M32.-)
Excludes2: Not Included Here

lupus vulgaris of eyelid (A18.4)

Excludes2: Not Included Here
  • tuberculosis of external ear (A18.4)
  • tuberculous mastoiditis (A18.03)
Inclusion Terms
  • Pott's disease or curvature of spine
  • Tuberculous arthritis
  • Tuberculous osteomyelitis of spine
  • Tuberculous spondylitis
Inclusion Terms
  • Tuberculosis of hip (joint)
  • Tuberculosis of knee (joint)
Inclusion Terms
  • Tuberculous mastoiditis
  • Tuberculous osteomyelitis
Inclusion Terms
  • Tuberculous myositis
  • Tuberculous synovitis
  • Tuberculous tenosynovitis
Inclusion Terms

Tuberculous urethritis

Inclusion Terms
  • Tuberculous endometritis
  • Tuberculous oophoritis and salpingitis
Inclusion Terms

Tuberculous ulceration of vulva

Inclusion Terms

Tuberculous adenitis

Inclusion Terms

Tuberculous ascites

Inclusion Terms
  • Tuberculosis of anus and rectum
  • Tuberculosis of intestine (large) (small)
Inclusion Terms
  • Tuberculosis of mesenteric glands
  • Tuberculosis of retroperitoneal (lymph glands)
Inclusion Terms
  • Erythema induratum, tuberculous
  • Lupus exedens
  • Lupus vulgaris NOS
  • Lupus vulgaris of eyelid
  • Scrofuloderma
  • Tuberculosis of external ear
Inclusion Terms
  • Tuberculous interstitial keratitis
  • Tuberculous keratoconjunctivitis (interstitial) (phlyctenular)
Inclusion Terms

Tuberculous conjunctivitis

Inclusion Terms

Tuberculous otitis media

Inclusion Terms

Tuberculous Addison's disease

Inclusion Terms
  • Tuberculosis of pituitary gland
  • Tuberculosis of thymus gland
Inclusion Terms
  • Tuberculous cardiomyopathy
  • Tuberculous endocarditis
  • Tuberculous myocarditis
  • Tuberculous pericarditis
Inclusion Terms
  • Tuberculosis of muscle
  • Tuberculous cerebral arteritis

Child Codes (More Specific Codes for A18):

A18.0 - Tuberculosis of bones and joints A18.01 - Tuberculosis of spine A18.02 - Tuberculous arthritis of other joints A18.03 - Tuberculosis of other bones A18.09 - Other musculoskeletal tuberculosis A18.1 - Tuberculosis of genitourinary system A18.10 - Tuberculosis of genitourinary system, unspecified A18.11 - Tuberculosis of kidney and ureter A18.12 - Tuberculosis of bladder A18.13 - Tuberculosis of other urinary organs A18.14 - Tuberculosis of prostate A18.15 - Tuberculosis of other male genital organs A18.16 - Tuberculosis of cervix A18.17 - Tuberculous female pelvic inflammatory disease A18.18 - Tuberculosis of other female genital organs A18.2 - Tuberculous peripheral lymphadenopathy A18.3 - Tuberculosis of intestines, peritoneum and mesenteric glands A18.31 - Tuberculous peritonitis A18.32 - Tuberculous enteritis A18.39 - Retroperitoneal tuberculosis A18.4 - Tuberculosis of skin and subcutaneous tissue A18.5 - Tuberculosis of eye A18.50 - Tuberculosis of eye, unspecified A18.51 - Tuberculous episcleritis A18.52 - Tuberculous keratitis A18.53 - Tuberculous chorioretinitis A18.54 - Tuberculous iridocyclitis A18.59 - Other tuberculosis of eye A18.6 - Tuberculosis of (inner) (middle) ear A18.7 - Tuberculosis of adrenal glands A18.8 - Tuberculosis of other specified organs A18.81 - Tuberculosis of thyroid gland A18.82 - Tuberculosis of other endocrine glands A18.83 - Tuberculosis of digestive tract organs, not elsewhere classified A18.84 - Tuberculosis of heart A18.85 - Tuberculosis of spleen A18.89 - Tuberculosis of other sites

About ICD-10-CM Code A18 (Tuberculosis of other organs)

ICD-10-CM code A18 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM A18 became effective on October 1, 2024.

This page provides detailed information about A18 - Tuberculosis of other organs. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Tuberculosis of other organs.