ICD-10-CM › A00-B99 › B35-B49 › B codes › B40

B40

Blastomycosis

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 7 more specific codes instead:

  • B40.0 Acute pulmonary blastomycosis
  • B40.1 Chronic pulmonary blastomycosis
  • B40.2 Pulmonary blastomycosis, unspecified
  • B40.3 Cutaneous blastomycosis
  • B40.7 Disseminated blastomycosis
  • B40.8 Other forms of blastomycosis (also a header)
  • B40.9 Blastomycosis, unspecified

What has happened to this code

Every change the publisher made, from 2012 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.

  1. FY2012 Added to the draft code set draft Blastomycosis

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.

This code

Excludes1 - never coded here

  • Brazilian blastomycosis (B41.-)
  • keloidal blastomycosis (B48.0)

Inherited from the B35-B49 section Mycoses (B35-B49)

Excludes2 - not included here

  • hypersensitivity pneumonitis due to organic dust (J67.-)
  • mycosis fungoides (C84.0-)