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  6. 2025 ICD-10-CM Code R83.8

2025 ICD-10-CM Diagnosis Code R83.8

Other abnormal findings in cerebrospinal fluid

ICD-10-CM Code:
R83.8
ICD-10 Code for:
Other abnormal findings in cerebrospinal fluid
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

R83.8 is a billable diagnosis code used to specify a medical diagnosis of other abnormal findings in cerebrospinal fluid. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    R00–R99
    • Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
      R83-R89
      • Abnormal findings in cerebrospinal fluid
        R83

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • Abnormal histological findings in CSF
  • Abnormal histology findings
  • AD7c neuronal thread protein concentration in cerebrospinal fluid above reference range
  • Cerebrospinal fluid appearance cloudy
  • Cerebrospinal fluid chloride above reference range
  • Cerebrospinal fluid chloride below reference range
  • Cerebrospinal fluid chloride outside reference range
  • Cerebrospinal fluid electrophoresis outside reference range
  • Cerebrospinal fluid globulin above reference range
  • Cerebrospinal fluid globulin below reference range
  • Cerebrospinal fluid glucose above reference range
  • Cerebrospinal fluid glucose below reference range
  • Cerebrospinal fluid: protein - increased +
  • Cerebrospinal fluid: protein - increased ++
  • Color of fluid - finding
  • Color of fluid - finding
  • CSF appearance turbid
  • CSF appearance - finding
  • CSF appearance - finding
  • CSF appearance - finding
  • CSF appearance - finding
  • CSF appearance: blood-stained
  • CSF appearance: xanthochromia
  • CSF protein electrophoretic profile - finding
  • CSF: chloride level - finding
  • CSF: chloride level - finding
  • CSF: chloride level - finding
  • CSF: glucose level - finding
  • CSF: protein level - finding
  • Finding of cerebrospinal fluid: globulin level
  • Finding of cerebrospinal fluid: globulin level
  • Glucose level below reference range
  • Increased cerebrospinal fluid production
  • Increased cerebrospinal fluid production
  • Increased cerebrospinal fluid production
  • Increased cerebrospinal fluid production
  • Increased cerebrospinal fluid production due to benign papilloma of choroid plexus
  • Increased cerebrospinal fluid production due to choroid plexus carcinoma
  • Increased cerebrospinal fluid production due to hyperplasia of choroid plexus
  • Presence of xanthochromia
  • Protein electrophoresis outside reference range
  • Sample xanthochromic

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Abnormal findings without diagnosis

CCSR Code: SYM017

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Abnormal chromosomal findings in cerebrospinal fluid

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert R83.8 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Abn fnd-cerebrospinal fl

ICD-9-CM: 792.0

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.