Tuberculosis of other organs (A18)

Browse all the diagnosis codes used for tuberculosis of other organs (a18). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Erythema Induratum - A type of panniculitis characterized histologically by the presence of granulomas, vasculitis, and necrosis. It is traditionally considered to be the tuberculous counterpart of nodular vasculitis, but is now known to occur without tuberculous precedent. It is seen most commonly in adolescent and menopausal women, is initiated or exacerbated by cold weather, and typically presents as one or more recurrent erythrocyanotic nodules or plaques on the calves. The nodules may progress to form indurations, ulcerations, and scars.

Granulomatous Mastitis - A rare, benign, inflammatory breast disease occurring in premenopausal women shortly after a recent pregnancy. The origin is unknown but it is commonly mistaken for malignancy and sometimes associated with BREAST FEEDING and the use of ORAL CONTRACEPTIVES.

Lupus Vulgaris - A form of cutaneous tuberculosis. It is seen predominantly in women and typically involves the NASAL MUCOSA; BUCCAL MUCOSA; and conjunctival mucosa.

Mesenteric Lymphadenitis - INFLAMMATION of LYMPH NODES in the MESENTERY.

Pyelitis - Inflammation of the KIDNEY PELVIS and KIDNEY CALICES where urine is collected before discharge, but does not involve the renal parenchyma (the NEPHRONS) where urine is processed.

Serositis - Inflammation of a serous membrane.

Tuberculoma - A tumor-like mass resulting from the enlargement of a tuberculous lesion.

Tuberculoma, Intracranial - A well-circumscribed mass composed of tuberculous granulation tissue that may occur in the cerebral hemispheres, cerebellum, brain stem, or perimeningeal spaces. Multiple lesions are quite common. Management of intracranial manifestations vary with lesion site. Intracranial tuberculomas may be associated with SEIZURES, focal neurologic deficits, and INTRACRANIAL HYPERTENSION. Spinal cord tuberculomas may be associated with localized or radicular pain, weakness, sensory loss, and incontinence. Tuberculomas may arise as OPPORTUNISTIC INFECTIONS, but also occur in immunocompetent individuals.

  • Certain infectious and parasitic diseases (A00–B99)

    • Tuberculosis (A15-A19)

        • Tuberculosis of other organs (A18)

        • A18 Tuberculosis of other organs
        • 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