K22.70

🧬 ICD-10-CM K22.70 — Barrett’s Esophagus Without Dysplasia

Billable Code Confirmed

ICD-10-CM K22.70 is a valid, billable 5-character ICD-10-CM code for FY2026. The K22 category defines other diseases of the esophagus, the 7 character specifies Barrett’s esophagus, and the 0 character confirms the specific absence of dysplasia. No additional characters are required.

Non-Billable Parent Codes — Never Submit These

• ❌ K22 — 3-character header — Lacks specificity regarding the exact esophageal disease.
• ❌ K22.7 — 4-character header — Lacks specificity regarding the presence or absence of dysplasia.

Always submit K22.70 (all 5 characters) when Barrett’s esophagus is documented and pathology confirms there is no dysplasia (or if dysplasia status is not specified, as K22.70 is the default).

Clinical Context: The Dysplasia Distinction

ICD-10-CM K22.70 captures intestinal metaplasia of the esophagus where cellular architecture remains benign (no dysplasia). Dysplasia represents a precancerous cellular change. If a pathology report indicates “low grade” or “high grade” dysplasia, the code must be selected from the K22.71- subcategory instead.

Code Classification

ICD-10-CM Diagnosis Code — wRVU, assistant payable, and global period fields are not applicable; direct reader to CPT Procedural Crosswalk and ICD-10-PCS Crosswalk sections.

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🔍 Code Description

ICD-10-CM K22.70 classifies Barrett’s esophagus without dysplasia. This code represents a condition in which the normal stratified squamous epithelium lining the distal esophagus is abnormally replaced by columnar epithelium containing goblet cells (intestinal metaplasia), but without any precancerous cellular atypia (dysplasia).

Pathophysiologically, this metaplastic change is a protective, adaptive response to chronic mucosal injury from gastric acid and bile exposure, most commonly due to long-standing Gastro-esophageal Reflux Disease (GERD). While the columnar cells are more resistant to acid, Barrett’s esophagus is a known precursor lesion for esophageal adenocarcinoma. Thus, regular endoscopic surveillance with biopsy is clinically indicated to monitor for dysplastic progression.

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🌳 Code Tree / Hierarchy

K22 Other diseases of esophagus ❌ Non-billable
│
├── K22.6 Gastro-esophageal laceration-hemorrhage syndrome ✅ Billable
├── K22.7 Barrett's esophagus ❌ Non-billable
│ │
│ ├── K22.70 Barrett's esophagus without dysplasia ◀ THIS CODE ✅ Billable
│ └── K22.71 Barrett's esophagus with dysplasia ❌ Non-billable
│   │
│   ├── K22.710 Barrett's esophagus with low grade dysplasia ✅ Billable
│   ├── K22.711 Barrett's esophagus with high grade dysplasia ✅ Billable
│   └── K22.719 Barrett's esophagus with dysplasia, unspecified ✅ Billable
│
└── K22.8 Other specified diseases of esophagus ❌ Non-billable

Default Code Status

According to the ICD-10-CM Alphabetic Index, if a provider simply documents “Barrett’s esophagus” without specifying the dysplasia status, the default code assignment is K22.70. However, best practice is to always verify the pathology report and query if dysplasia is mentioned in the path but missing from the provider’s final diagnosis.

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✅ Includes

The following clinical terms and scenarios map to K22.70 when documented:

• Barrett’s disease NOS

• Barrett’s syndrome NOS

• Barrett’s ulcer

• Intestinal metaplasia of the lower esophagus (without dysplasia)

• Columnar epithelium lining of the lower esophagus

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❌ Excludes

Excludes 1 — Cannot Be Coded Simultaneously with K22.70

Code	Description	Note
K22.71-	Barrett’s esophagus with dysplasia	Mutually exclusive. A patient cannot concurrently have Barrett’s both “with” and “without” dysplasia at the highest level of diagnosis; code the highest severity (dysplasia) if present.
C15.-	Malignant neoplasm of esophagus	Mutually exclusive. If the condition has progressed to esophageal adenocarcinoma, only the malignancy code is reported.

Excludes 1 Violation Risk

Never code K22.70 alongside K22.710 or K22.711. If multiple biopsies are taken during an EGD and one shows no dysplasia while another shows low-grade dysplasia, you must code only the most severe finding (K22.710).

Excludes 2 — May Be Coded in Addition if Separately Present

Code	Description	Note
K21.-	Gastro-esophageal reflux disease	May be coded simultaneously. Since GERD is the primary underlying etiology for Barrett’s esophagus, both can and often should be coded together to capture the complete clinical picture.

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📋 Clinical Overview

Phenotype Distinction: Barrett’s Progression

This table compares the progressive stages of Barrett’s esophagus, which dictates the surveillance interval and correct ICD-10-CM assignment.

Feature	K22.70 — Without Dysplasia	K22.710 — Low Grade Dysplasia	K22.711 — High Grade Dysplasia
Cellular Architecture	Intestinal metaplasia only	Mild atypical cellular changes	Severe atypia, carcinoma in situ
Cancer Risk	Very Low (~0.1% to 0.3% per year)	Moderate (~1% per year)	High (~6% per year)
Typical Management	EGD Surveillance (every 3-5 years)	EGD Surveillance (annual) or Ablation	Endoscopic Eradication Therapy (RFA, EMR)

CDI Query Trigger — Pathology Disconnect

If an EGD is performed and the provider’s postoperative diagnosis is “Barrett’s esophagus” (K22.70), but the finalized pathology report returns a week later showing “Barrett’s mucosa with low-grade dysplasia,” a query must be sent to the provider. The provider must officially add the dysplasia finding to the diagnostic statement so the coder can capture K22.710.

Manifestations & Symptom Burden

Barrett’s esophagus itself is often asymptomatic; symptoms are typically driven by the underlying GERD:

• Chronic Pyrosis (Heartburn): Persistent burning sensation behind the sternum.

• Acid Regurgitation: Sour fluid backing into the throat.

• Dysphagia: Difficulty swallowing, which may indicate stricture formation or disease progression.

Coding Manifestations

Always code the documented underlying conditions or manifestations to fully capture patient complexity. Examples include:

• K21.00 — Gastro-esophageal reflux disease with esophagitis, without bleeding

• K44.9 — Diaphragmatic hernia without obstruction or gangrene

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💰 HCC Risk Adjustment (CMS-HCC v28)

Field	Detail
CMS-HCC Model Version	v28 (2024-2025 Implementation)
HCC Assignment	❌ Not HCC-Mapped
HCC Category	N/A
RAF Coefficient	N/A

K22.70 does not map to an HCC under v28.

Capture Annually

Although not an HCC-mapped chronic condition for risk adjustment, capturing K22.70 is vital for proving medical necessity. It justifies the ongoing prescription of high-dose proton pump inhibitors (PPIs) and validates the medical need for routine surveillance endoscopies, which would otherwise be denied by payers if coded simply as GERD.

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🏥 DRG Assignment

MDC 06 — Diseases and Disorders of the Digestive System

DRG	Title	Est. Relative Weight*
DRG 391	Esophagitis, Gastroenteritis and Misc Digestive Disorders with MCC	~1.15
DRG 392	Esophagitis, Gastroenteritis and Misc Digestive Disorders without MCC	~0.70

Approximate. Verify against IPPS FY2026 Final Rule tables.

Sequencing and Complications

K22.70 is exceptionally rare as a principal diagnosis for an inpatient admission unless the patient is admitted for a therapeutic endoscopic intervention directly related to the esophagus (like an ablation). It is generally a secondary diagnosis found in the history and does not act as a CC or MCC.

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🔗 Related ICD-10-CM Codes

Progression / Exacerbation Variants

Code	Description
K22.70	Barrett’s esophagus without dysplasia ← This Code
K22.710	Barrett’s esophagus with low grade dysplasia
K22.711	Barrett’s esophagus with high grade dysplasia

Etiology and Alternative Diagnoses

Code	Description
K21.9	Gastro-esophageal reflux disease without esophagitis
K22.2	Esophageal obstruction (Stricture)
C15.5	Malignant neoplasm of lower third of esophagus

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🛠️ Commonly Associated CPT Codes (Outpatient & Profee)

Outpatient and Profee Setting Context

K22.70 is a high-frequency diagnosis in ambulatory GI settings, used heavily to justify diagnostic endoscopies (with biopsy) for disease surveillance.

CPT Code	Description	Profee Coding Notes (Modifier 26)
43235	EGD, flexible, transoral; diagnostic	Base diagnostic procedure.
43239	EGD, flexible, transoral; with biopsy, single or multiple	The most common CPT billed with K22.70 to check for dysplasia.
43227	Esophagoscopy, flexible, transoral; with control of bleeding	Billed if a bleeding Barrett’s ulcer requires intervention.

NCCI Bundling Considerations

• 43235 (Diagnostic EGD) billed on the same day as 43239 (EGD with biopsy). The diagnostic scope is inherently bundled into the surgical/biopsy code. Report only 43239.

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🔬 ICD-10-PCS Crosswalk (Inpatient Procedures)

When K22.70 is an inpatient diagnosis, these PCS codes are relevant for associated inpatient procedures.

PCS Section	Body System	Root Operation	Clinical Application
0 (Medical/Surgical)	D (Gastrointestinal System)	B (Excision)	EGD with biopsy of the distal esophagus: 0DB58ZX (Excision of Lower Esophagus, Via Natural or Artificial Opening Endoscopic, Diagnostic).
0 (Medical/Surgical)	D (Gastrointestinal System)	J (Inspection)	Diagnostic EGD performed to evaluate mucosal healing: 0DJ08ZZ (Inspection of Upper Intestinal Tract, Via Natural or Artificial Opening Endoscopic).

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💊 Coding Scenarios and Examples

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Scenario 1 — Outpatient Ambulatory Surgery Center: Surveillance EGD

Clinical Vignette: A 58-year-old male with a known history of Barrett’s esophagus presents for his 3-year surveillance EGD. He has a history of severe GERD, currently managed with daily omeprazole. The EGD shows a 3 cm segment of salmon-colored mucosa in the distal esophagus. Four-quadrant biopsies are taken. The final pathology report confirms intestinal metaplasia with no evidence of dysplasia.

CPT / HCPCS (Profee):

• 43239 — EGD, flexible, transoral; with biopsy, single or multiple

ICD-10-CM Diagnoses:

• K22.70 — Barrett’s esophagus without dysplasia (Primary indication for the procedure and confirmed by pathology).

• K21.9 — Gastro-esophageal reflux disease without esophagitis (Underlying condition being medically managed).

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Scenario 2 — Inpatient Hospitalization: Secondary Diagnosis

Clinical Vignette: A 65-year-old female is admitted for a severe COPD exacerbation requiring IV steroids and BiPAP. During the admission, the hospitalist notes her home medications include Dexilant. The patient states this is for her “Barrett’s esophagus,” which was diagnosed via scope last year without any precancerous cells. The hospitalist continues the Dexilant on the inpatient MAR to prevent acid reflux while she is on steroids.

Principal Diagnosis:

• J44.1 — Chronic obstructive pulmonary disease with (acute) exacerbation (Reason for admission).

Secondary Diagnoses:

• K22.70 — Barrett’s esophagus without dysplasia (Condition was actively managed/treated with medication during the stay).

MS-DRG Assignment: Groups to DRG 190 (COPD with MCC) or 191/192 (with CC or without CC/MCC), depending on other secondary diagnoses. K22.70 acts as a standard secondary diagnosis and does not elevate the DRG weight.

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Scenario 3 — CDI Query: Missing Pathology Confirmation

Clinical Vignette: A patient is seen in the GI clinic for a follow-up 2 weeks after an EGD. The provider’s note states: “Review of path results from recent EGD. Patient has Barrett’s esophagus. Will switch from pantoprazole to rabeprazole and follow up in 1 year.” The attached pathology report states: “Esophageal mucosa: Intestinal metaplasia with low-grade dysplasia.”

Action / Outcome:

The provider’s diagnosis of “Barrett’s esophagus” defaults to K22.70 (without dysplasia). However, the pathology report clearly indicates low-grade dysplasia. A coder cannot code directly from the pathology report to override the provider’s diagnosis; a CDI query must be sent to bridge this clinical gap.

Query Response: Provider updates the clinical assessment to state: “Barrett’s esophagus with low-grade dysplasia.”

Corrected ICD-10-CM Coding:

• K22.710 — Barrett’s esophagus with low grade dysplasia (Accurately captures the severity risk and justifies the 1-year follow-up plan).

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⚠️ Coding Pitfalls and Tips

	Pitfall or Tip
❌	Coding from Pathology Without Provider Linkage. You cannot assign K22.71- (with dysplasia) based solely on a pathology report if the provider only documented “Barrett’s esophagus.” You must query the provider to document the dysplasia in the official medical record.
❌	Omitting GERD. Do not assume GERD is inherently bundled into K22.70. If the provider documents both GERD and Barrett’s, you should assign both K21.- and K22.70.
✅	Default to K22.70. If the provider documents “Barrett’s esophagus” and there is no mention of dysplasia anywhere in the record or path report, assign K22.70. It is the default code for unspecified Barrett’s.
✅	Check the Location. Barrett’s esophagus almost exclusively affects the distal (lower) third of the esophagus. If coding inpatient procedures (PCS), ensure you select the “Lower Esophagus” body part value (5) rather than upper or middle.

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📚 Sources

1. CMS/NCHS. ICD-10-CM Official Guidelines for Coding and Reporting, FY2026.

2. American College of Gastroenterology (ACG). Clinical Guideline: Diagnosis and Management of Barrett’s Esophagus.

3. CMS. IPPS Final Rule FY2026 — MS-DRG Definitions Manual v43. MDC 06 logic tables.

4. AMA. CPT Professional Edition 2026. Surgery / Digestive System.