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ICD-10-CM Current in FY 2027

D89.9

Disorder involving the immune mechanism, unspecified

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where D89.9 sits in the official hierarchy. Each level is the code it is classified under.

  1. D89 Parent Other disorders involving the immune mechanism, not elsewhere classified
  2. D89.9 This code Disorder involving the immune mechanism, unspecified

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Immune disease NOS

Excludes1

hyperglobulinemia NOS ( R77.1 )

Inherited from D89 — Other disorders involving the immune mechanism, not elsewhere classified

Excludes1

monoclonal gammopathy (of undetermined significance) ( D47.2 )

Inherited from D89 — Other disorders involving the immune mechanism, not elsewhere classified

Excludes2

transplant failure and rejection ( T86 .-)

Inherited from D89 — Other disorders involving the immune mechanism, not elsewhere classified

Version History

How D89.9 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Disorder involving the immune mechanism, unspecified

  2. FY 2026 Effective

    Unchanged

    Disorder involving the immune mechanism, unspecified

Related Codes

Other codes under D89

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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