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B48.2

B48.2Allescheriasis

Billable / specific codeICD-10-CM

B48.2 is a billable, specific ICD-10-CM code for allescheriasis. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Infection due to Pseudallescheria boydii

Risk adjustment

B48.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

B48.2 is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A57672Billing and Coding: Nail Debridement

How B48.2 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B48.2.

  • Allescheriasis
  • Petrellidosis
  • Infection, infected, infectiveAllescheria boydii
  • Infection, infected, infectiveMonosporium apiospermum
  • Infection, infected, infectivePetriellidium boydii
  • Infection, infected, infectivePseudoallescheria boydii

Related codes at this level

Codes that share B48. If B48.2 is not quite right, the correct code is usually one of these.

Questions about B48.2

Is B48.2 a billable ICD-10-CM code?
Yes. B48.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does B48.2 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).
What cannot be coded together with B48.2?
B48.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.