B43
Non-Billable

Chromomycosis and pheomycotic abscess

Non-Billable / Non-Specific Code

What is Chromomycosis and pheomycotic abscess?

ICD-10-CM B43 is the diagnosis code for Chromomycosis and pheomycotic abscess. This code falls under the section "Mycoses" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for B43

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where B43 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeB43 — Chromomycosis and pheomycotic abscess
Sub-Codes 5 entries
B43.0Cutaneous chromomycosisBillableB43.1Pheomycotic brain abscessBillableB43.2Subcutaneous pheomycotic abscess and cystBillableB43.8Other forms of chromomycosisBillableB43.9Chromomycosis, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is B43 a billable ICD-10-CM code?

No, B43 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does B43 mean?

B43 is the ICD-10-CM diagnosis code for "Chromomycosis and pheomycotic abscess". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is B43 in?

B43 is located in Section B35-B49 — "Mycoses" within Chapter 1 of the ICD-10-CM Tabular List.

What are the sub-codes of B43?

B43 has 5 sub-code(s) that provide more specific detail: B43.0, B43.1, B43.2, B43.8, B43.9.

When should I use B43?

Use B43 when the patients documented diagnosis matches "Chromomycosis and pheomycotic abscess" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Chromomycosis and pheomycotic abscess?

The ICD-10-CM code for Chromomycosis and pheomycotic abscess is B43.

Can B43 be used for primary diagnosis?

No, B43 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is B43 in?

B43 is in Chapter 1 of the ICD-10-CM Tabular List.

Is B43 valid for 2026?

Yes, B43 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousB42.9Sporotrichosis, unspecifiedNext →B43.0Cutaneous chromomycosis
Code Details
B43
Chromomycosis and pheomycotic abscess
Non-Billable / Non-Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
B35-B49 — Mycoses
2026 ICD-10-CM