ICD-10-CM
ICD-10 code for Scrofuloderma, scrofulodermia (any site) (primary): A18.4
The ICD-10-CM index points "Scrofuloderma, scrofulodermia (any site) (primary)" to A18.4, Tuberculosis of skin and subcutaneous tissue. A18.4 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in A18
A header groups codes and is not billed. A billable code is one you can report.
- A18Tuberculosis of other organsHeader
- A18.0Tuberculosis of bones and jointsHeader
- A18.01Tuberculosis of spineBillable
- A18.02Tuberculous arthritis of other jointsBillable
- A18.03Tuberculosis of other bonesBillable
- A18.09Other musculoskeletal tuberculosisBillable
- A18.1Tuberculosis of genitourinary systemHeader
- A18.10Tuberculosis of genitourinary system, unspecifiedBillable
- A18.11Tuberculosis of kidney and ureterBillable
- A18.12Tuberculosis of bladderBillable
- A18.13Tuberculosis of other urinary organsBillable
- A18.14Tuberculosis of prostateBillable
- A18.15Tuberculosis of other male genital organsBillable
- A18.16Tuberculosis of cervixBillable
- A18.17Tuberculous female pelvic inflammatory diseaseBillable
- A18.18Tuberculosis of other female genital organsBillable
- A18.2Tuberculous peripheral lymphadenopathyBillable
- A18.3Tuberculosis of intestines, peritoneum and mesenteric glandsHeader
- A18.31Tuberculous peritonitisBillable
- A18.32Tuberculous enteritisBillable
- A18.39Retroperitoneal tuberculosisBillable
- A18.4Tuberculosis of skin and subcutaneous tissueBillable
- A18.5Tuberculosis of eyeHeader
- A18.50Tuberculosis of eye, unspecifiedBillable
- A18.51Tuberculous episcleritisBillable
- A18.52Tuberculous keratitisBillable
- A18.53Tuberculous chorioretinitisBillable
- A18.54Tuberculous iridocyclitisBillable
- A18.59Other tuberculosis of eyeBillable
- A18.6Tuberculosis of (inner) (middle) earBillable
- A18.7Tuberculosis of adrenal glandsBillable
- A18.8Tuberculosis of other specified organsHeader
- A18.81Tuberculosis of thyroid glandBillable
- A18.82Tuberculosis of other endocrine glandsBillable
- A18.83Tuberculosis of digestive tract organs, not elsewhere classifiedBillable
- A18.84Tuberculosis of heartBillable
- A18.85Tuberculosis of spleenBillable
- A18.89Tuberculosis of other sitesBillable
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
Related conditions
Related pages
- A18.4 code detailsNotes, nearby codes, CMS-HCC group
- Category A18Every code under it
- Chapter 1Certain infectious and parasitic diseases
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Scrofuloderma, scrofulodermia (any site) (primary)?
The ICD-10-CM index points "Scrofuloderma, scrofulodermia (any site) (primary)" to A18.4, Tuberculosis of skin and subcutaneous tissue. A18.4 is a billable code.
Is A18.4 billable?
Yes. A18.4 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to A18.4?
The CDC tabular list gives 2 Excludes2 notes (may be coded together when both are documented) for A18.4 and the categories above it. They are listed on this page.
What chapter is A18.4 in?
Chapter 1. Certain infectious and parasitic diseases.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.