Elevated CRP ICD-10-CM Codes

Elevated CRP ICD-10-CM Codes

Read this short guide to learn about elevated CRP ICD codes you can use.

By Patricia Buenaventura on Jul 16, 2025.

Fact Checked by Gale Alagos.

Use Code

What ICD-10 codes are used for elevated CRP?

If you're looking for elevated C-reactive protein (CRP) ICD codes, there is only one ICD-10 code specific to it, and that's R79.82: Elevated C-reactive protein (CRP).

The code is under the following categories, code ranges, chapters, etc.:

  • R79.8: Other specified abnormal findings of blood chemistry
  • R79: Other abnormal findings of blood chemistry
  • R70-79: Abnormal findings on examination of blood, without diagnosis
  • R00-R99: Symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified

Just as its name states, this ICD-10 code is meant to be used on a patient confirmed to have C-reactive protein levels that are way above the normal range. The normal range for C-reactive protein is less than 0.9 milligrams per deciliter (mg/dL). If your patient has a C-reactive protein level higher than 0.9mg/dL, you may use this ICD-10 code.

Please note that this ICD-10 code is not valid as a principal diagnosis because elevated C-reactive protein commonly results from inflammation, so your primary ICD-10 code must be related to inflammation as per the guidelines to ensure proper coding practices. You may also use this for cases related to infections, tissue injuries/damage, chronic diseases, and autoimmune diseases related to CRP elevation.

Which elevated CRP ICD codes are billable?

Even if this ICD-10 code for Elevated CRP isn't valid as a principal diagnosis, the lone code is valid in general and billable.

Clinical information

C-reactive Protein, or CRP for short, is a substance produced by the liver and released into the bloodstream whenever a person has inflammation, infections, tissue injuries, chronic diseases, or autoimmune diseases. CRP can increase a thousand-fold in sites of inflammation, infection, or tissue injury.

Healthcare professionals consider elevated levels of CRP as a marker for underlying problems a patient might have. They measure it by milligrams per deciliter (mg/dL). CRP isn't tied to specific diseases and conditions, but examining the amount of CRP a patient has will assist professionals during the diagnostic process and patient monitoring.

Please note that only looking at CRP levels isn't enough to determine the underlying problem. One must conduct more tests to narrow things down and confirm the problem before making an official diagnosis.

Synonyms include

  • C-reactive protein above reference range
  • C-reactive protein outside reference range
  • Raised C-reactive protein
  • Raised C-reactive protein levels
  • Elevated C-reactive protein levels
  • Abnormally high C-reactive protein levels
  • Elevated CRP ICD 10
  • ICD 10 code for elevated CRP
  • ICD 10 elevated CRP
  • Elevated CRP ICD 10 code
  • CRP elevated ICD 10

Related ICDs

EHR and practice management software

Get started for free

*No credit card required

Start for free

Free

$0/usd

Unlimited clients

Telehealth

1GB of storage

Client portal text

Automated billing and online payments