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R10.1 vs R10.827

R10.1 (Pain localized to upper abdomen) compared with R10.827 (Generalized rebound abdominal tenderness), from the official CMS tabular data.

Summary

These codes can be reported together when both conditions are documented, because R10.827 lists R10.1 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and billing status.R10.1 is “Pain localized to upper abdomen”; R10.827 is “Generalized rebound abdominal tenderness”. R10.1 is a non-billable header; R10.827 is billable.

Registry fact

Can these codes be reported together?

Yes, when both are documented.R10.827 lists R10.1 under Excludes2: “pain localized to upper abdomen (R10.1-)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. R10.1 carries 1 Excludes1 note and R10.827 carries 1 Excludes1 note covering other codes; the side-by-side table quotes them.

Official rule

Is there an Excludes2 relationship?

Yes.R10.827’s tabular entry: “pain localized to upper abdomen (R10.1-)”. The note covers R10.1.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

No.Neither is a subdivision of the other, and neither title is the unspecified form; they describe different conditions within category R10.

Registry fact

Is one a parent or header code?

One is a header.R10.1 is a non-billable header, but R10.827 is not one of its subdivisions.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Informational

Excludes2 relationship

R10.827
Generalized rebound abdominal tenderness
↔
R10.1
Pain localized to upper abdomen

What we found

Yes, when both are documented.R10.827 carries an Excludes2 note covering R10.1: “pain localized to upper abdomen (R10.1-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Official guidance behind these answers

  • Section I.A.12.b — Excludes2 · applies to: Excludes2

    A type 2 Excludes note represents “Not included here.” An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

    ICD-10-CM Official Guidelines FY2026

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

R10.1Pain localized to upper abdomenR10.827Generalized rebound abdominal tenderness
Billing statusNon-billable header

Report instead: R10.10, R10.11, R10.12, R10.13

Billable
ClassificationR00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99)R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99)
DefinitionPain localized to upper abdomen is a non-billable ICD-10-CM category code (R10.1).Generalized rebound abdominal tenderness is a billable ICD-10-CM diagnosis code (R10.827).
Excludes1
renal colic (N23)
renal colic (N23)
Excludes2
pain localized to flank (R10.A-)
pelvic and perineal pain (R10.2-)
costovertebral (angle) tenderness (R39.85)
dorsalgia (M54.-)
flatulence and related conditions (R14.-)
congenital or infantile pylorospasm (Q40.0)
gastrointestinal hemorrhage (K92.0-K92.2)
intestinal obstruction (K56.-)
newborn gastrointestinal hemorrhage (P54.0-P54.3)
newborn intestinal obstruction (P76.-)
pylorospasm (K31.3)
signs and symptoms involving the urinary system (R30-R39)
symptoms referable to female genital organs (N94.-)
symptoms referable to male genital organs (N48-N50)
pain localized to other parts of lower abdomen (R10.3-)
pain localized to upper abdomen (R10.1-)
costovertebral (angle) tenderness (R39.85)
dorsalgia (M54.-)
flatulence and related conditions (R14.-)
congenital or infantile pylorospasm (Q40.0)
gastrointestinal hemorrhage (K92.0-K92.2)
intestinal obstruction (K56.-)
newborn gastrointestinal hemorrhage (P54.0-P54.3)
newborn intestinal obstruction (P76.-)
pylorospasm (K31.3)
signs and symptoms involving the urinary system (R30-R39)
symptoms referable to female genital organs (N94.-)
symptoms referable to male genital organs (N48-N50)

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources