ICD-10-CM › A00-B99 › A15-A19 › A18 Tuberculosis of other organs › A18.4
Tuberculosis of skin and subcutaneous tissue
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Tuberculosis of skin and subcutaneous tissue
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the A15-A19 section Tuberculosis (A15-A19)
Excludes1 - never coded here
- 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
- code, if applicable, for associated cachexia (E88.A)
Includes
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Naga sore
- Phagedena
- Sloughing
- Sphacelus
- Veldt sore
- Sore > Naga
- Erythroderma
- Sore > veldt
- Desert > sore
- Mortification
- Sore > desert
- Verrucosities
- Lesion > warty
- Pericellulitis
- Sore > of skin
- Sore > tropical
- Meleney's > ulcer
- Sloughing > ulcer
- Necrosis, necrotic
- Meleney's > gangrene
- Phagedena > tropical
- Abscess > tuberculous
- Barcoo disease or rot
- Pemphigus > gangrenous
- Cellulitis > gangrenous
- Disorder > erythematous
- Dropsy, dropsical > gangrenous
- Gangrene, gangrenous > Meleney's
- Lesion > ulcerated or ulcerative
- Infection, infected, infective > skin > ulcer
- Gangrene, gangrenous > progressive synergistic
- Infection, infected, infective > local, skin > ulcer
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > chronic
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > trophic
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > atrophic
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > tropical
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > fistulous
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > Meleney's
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > sloughing
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative > gangrenous
Showing 40 of 95 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| A18.0 | Tuberculosis of bones and joints | Not billable |
| A18.1 | Tuberculosis of genitourinary system | Not billable |
| A18.2 | Tuberculous peripheral lymphadenopathy | Valid |
| A18.3 | Tuberculosis of intestines, peritoneum and mesenteric glands | Not billable |
| A18.5 | Tuberculosis of eye | Not billable |
| A18.6 | Tuberculosis of (inner) (middle) ear | Valid |
| A18.7 | Tuberculosis of adrenal glands | Valid |
| A18.8 | Tuberculosis of other specified organs | Not billable |