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ICD-10-CM 2027

ICD-10 code for skin hypersensitivity examination

Z01.82

Encounter for allergy testing

✓ Billable / specificNot a principal dx

From the official ICD-10-CM alphabetic index entry “Examination (for) (following) (general) (of) (routine) › skin (hypersensitivity)”. Page updated September 29, 2026.

About coding skin hypersensitivity examination

The ICD-10-CM code for skin hypersensitivity examination is Z01.82 (Encounter for allergy testing).

Within Z01.8 (encounter for other specified special examinations), Z01.82 is specifically for encounter for allergy testing. Related codes cover preprocedural examinations (Z01.81), blood typing (Z01.83), antibody response examination (Z01.84) and other specified special examinations (Z01.89).

Don't report Z01.82 together with the conditions in its Excludes1 note: encounter for antibody response examination (Z01.84).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

Don't confuse with (Excludes1 for Z01.82)

  • encounter for antibody response examination (Z01.84)

Common questions about skin hypersensitivity examination ICD-10 codes

What is the ICD-10 code for skin hypersensitivity examination?

Z01.82 — Encounter for allergy testing.

Is Z01.82 billable?

Yes. Z01.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Z01.82 be used as a principal diagnosis?

No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

Is Z01.82 a CC or MCC?

No. Z01.82 is neither a CC nor an MCC under MS-DRG v44.0.