A18.7 — Tuberculosis of adrenal glands

BillableCC

Is A18.7 billable?

Yes — A18.7 is billable for FY2027. A18.7 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. A18.7 may be submitted for encounters from October 1, 2026 through September 30, 2027.

A18.7 at a glance

Code	A18.7
Description	Tuberculosis of adrenal glands
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does A18.7 group to?

A18.7 sits in MDC 10 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

643Endocrine Disorders with MCCmedical
644Endocrine Disorders with CCmedical
645Endocrine Disorders without CC/MCCmedical

As a secondary diagnosis, A18.7 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is A18.7 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to A18.7. They show the wording a clinician may have documented, which often differs from the Tabular description.

Adrenalism, tuberculous
Hypoadrenalism, hypoadrenia › tuberculous
Tuberculosis, tubercular, tuberculous › Addison's disease (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › adrenal (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › bronze disease (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › glandula suprarenalis (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › hypoadrenalism (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › melanosis, Addisonian (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Tuberculosis, tubercular, tuberculous › suprarenal (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
Addison's › diseaseor syndrome › tuberculous
Disease, diseased › bronze Addison's › tuberculous
Melanosis › addisonian › tuberculous

Inclusion terms

Alternative wording in documentation that is classified to A18.7.

Tuberculous Addison's disease

Excludes1 — never code together — inherited from A15-A19

The conditions below can never be reported together with A18.7 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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

Use additional code — inherited from Chapter 1

Report an additional code alongside A18.7 to fully describe the condition. A18.7 is sequenced first.

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

Use additional code — inherited from A15-A19

Report an additional code alongside A18.7 to fully describe the condition. A18.7 is sequenced first.

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

Excludes2 — not included here — inherited from Chapter 1

The conditions below are not part of A18.7, but a patient may have both at the same time. When documentation supports it, A18.7 and the excluded code may both be reported.

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

How long has A18.7 existed?

A18.7 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with A18.7?

ICD-10-CM declares these codes mutually exclusive with A18.7 — exactly one of each pair can be correct for a given encounter.