Tuberculosis of other organs
In Tuberculosis (A15-A19), chapter 1: Certain Infectious and Parasitic Diseases
32 billable codes under A18: 1 is an MCC, 31 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Also applies, from Tuberculosis (A15-A19)
These notes sit on A15-A19 and apply to every code under it, including A18.
Includes: conditions that are coded here
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes1: not coded here, use a different code
- 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: add a second code for this, listed after this one
- code, if applicable, for associated cachexia (E88.A)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.
- Human Immunodeficiency Virus (HIV) Infections (page 19)
- Infectious agents as the cause of diseases classified to other chapters (page 22)
- Infections resistant to antibiotics (page 22)
- Sepsis, Severe Sepsis, and Septic Shock (page 23)
- Methicillin Resistant Staphylococcus aureus (MRSA) Conditions (page 27)
- Zika virus infections (page 28)
- Coronavirus infections (page 28)
All codes under A18
A18 can't be used on a claim. Pick a billable code below; grey headings group them.
- A18.0Tuberculosis of bones and joints
- A18.01Tuberculosis of spine
- A18.02Tuberculous arthritis of other joints
- A18.03Tuberculosis of other bones
- A18.09Other musculoskeletal tuberculosis
- A18.1Tuberculosis of genitourinary system
- A18.10Tuberculosis of genitourinary system, unspecified
- A18.11Tuberculosis of kidney and ureter
- A18.12Tuberculosis of bladder
- A18.13Tuberculosis of other urinary organs
- A18.14Tuberculosis of prostate
- A18.15Tuberculosis of other male genital organs
- A18.16Tuberculosis of cervix
- A18.17Tuberculous female pelvic inflammatory disease
- A18.18Tuberculosis of other female genital organs
- A18.2Tuberculous peripheral lymphadenopathy
- A18.3Tuberculosis of intestines, peritoneum and mesenteric glands
- A18.31Tuberculous peritonitis
- A18.32Tuberculous enteritis
- A18.39Retroperitoneal tuberculosis
- A18.4Tuberculosis of skin and subcutaneous tissue
- A18.5Tuberculosis of eye
- A18.50Tuberculosis of eye, unspecified
- A18.51Tuberculous episcleritis
- A18.52Tuberculous keratitis
- A18.53Tuberculous chorioretinitis
- A18.54Tuberculous iridocyclitis
- A18.59Other tuberculosis of eye
- A18.6Tuberculosis of (inner) (middle) ear
- A18.7Tuberculosis of adrenal glands
- A18.8Tuberculosis of other specified organs
- A18.81Tuberculosis of thyroid gland
- A18.82Tuberculosis of other endocrine glands
- A18.83Tuberculosis of digestive tract organs, not elsewhere classified
- A18.84Tuberculosis of heart
- A18.85Tuberculosis of spleen
- A18.89Tuberculosis of other sites
A18 MS-DRGs
As the principal diagnosis, the billable codes under A18 group to these 30 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 974 HIV with Major Related Condition with MCC (32 of 32 codes)
- DRG 975 HIV with Major Related Condition with CC (32 of 32 codes)
- DRG 976 HIV with Major Related Condition without CC/MCC (32 of 32 codes)
- DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (6 of 32 codes)
- DRG 125 Other Disorders of the Eye without MCC (6 of 32 codes)
- DRG 371 Major Gastrointestinal Disorders and Peritoneal Infections with MCC (4 of 32 codes)
- DRG 372 Major Gastrointestinal Disorders and Peritoneal Infections with CC (4 of 32 codes)
- DRG 373 Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC (4 of 32 codes)
- DRG 689 Kidney and Urinary Tract Infections with MCC (4 of 32 codes)
- DRG 690 Kidney and Urinary Tract Infections without MCC (4 of 32 codes)
- DRG 742 Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC (3 of 32 codes)
- DRG 743 Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC (3 of 32 codes)
- DRG 757 Infections, Female Reproductive System with MCC (3 of 32 codes)
- DRG 758 Infections, Female Reproductive System with CC (3 of 32 codes)
- DRG 759 Infections, Female Reproductive System without CC/MCC (3 of 32 codes)
- DRG 867 Other Infectious and Parasitic Diseases Diagnoses with MCC (3 of 32 codes)
- DRG 868 Other Infectious and Parasitic Diseases Diagnoses with CC (3 of 32 codes)
- DRG 869 Other Infectious and Parasitic Diseases Diagnoses without CC/MCC (3 of 32 codes)
- DRG 539 Osteomyelitis with MCC (2 of 32 codes)
- DRG 540 Osteomyelitis with CC (2 of 32 codes)
- DRG 541 Osteomyelitis without CC/MCC (2 of 32 codes)
- DRG 548 Septic Arthritis with MCC (2 of 32 codes)
- DRG 549 Septic Arthritis with CC (2 of 32 codes)
- DRG 550 Septic Arthritis without CC/MCC (2 of 32 codes)
- DRG 643 Endocrine Disorders with MCC (2 of 32 codes)
- DRG 644 Endocrine Disorders with CC (2 of 32 codes)
- DRG 645 Endocrine Disorders without CC/MCC (2 of 32 codes)
- DRG 727 Inflammation of the Male Reproductive System with MCC (2 of 32 codes)
- DRG 728 Inflammation of the Male Reproductive System without MCC (2 of 32 codes)
- DRG 814 Reticuloendothelial and Immunity Disorders with MCC (2 of 32 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Tuberculosis
Tuberculosis (TB) is a bacterial disease that usually attacks the lungs. But it can also attack other parts of the body, including the kidneys, spine, and brain.
Read more about tuberculosis on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.