Mastering ICD-10-PCS Code for Dilation and Curettage (D&C)

In the intricate world of medical coding, where every character in an alphanumeric sequence carries significant clinical and financial weight, few procedures demand as much nuanced understanding as the Dilation and Curettage (D&C). On the surface, it appears to be a single, standardized surgical intervention. However, beneath this veneer of simplicity lies a complex landscape of clinical intentions, anatomical considerations, and procedural techniques. For the medical coder, accurately translating a surgeon’s operative report into the precise language of the International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) is a critical task. An erroneous code can lead to claim denials, compliance issues, audits, and a distorted representation of patient care and resource utilization. This article is designed to be your definitive guide, a deep dive into the art and science of ICD-10-PCS coding for D&C procedures. We will move beyond memorizing codes and instead build a foundational understanding of the “why” behind the “what,” empowering you to code with confidence, accuracy, and expertise. Whether you are a seasoned coder, a healthcare administration student, or a clinical professional seeking to understand the backend of patient care, this exploration will illuminate the path to mastery.

2. Understanding the Foundation: What is a Dilation and Curettage (D&C)?

Before a single code can be assigned, one must fully grasp the clinical procedure itself. A Dilation and Curettage is a common surgical procedure primarily involving the uterus. The name itself describes the two key steps:

• Dilation (D): The cervix, the narrow, lower part of the uterus that opens into the vagina, is gradually stretched or dilated. This is typically achieved using a series of tapered rods of increasing diameter called dilators.

• Curettage (C): Once the cervix is sufficiently dilated, a surgical instrument called a curette is inserted into the uterine cavity. A curette can be a sharp, spoon-shaped instrument or a plastic cannula attached to a suction device. This instrument is used to scrape or suction the endometrium—the mucous membrane lining the inside of the uterus.

The purpose of this seemingly straightforward two-step process, however, varies dramatically, and it is this purpose that becomes the primary driver of ICD-10-PCS code selection. The procedure can be performed for a multitude of reasons, which we will categorize as follows:

• Obstetric (Pregnancy-Related): To remove products of conception following a miscarriage (spontaneous abortion), to manage an incomplete or missed abortion, or to diagnose and treat a molar pregnancy.

• Gynecological (Non-Pregnancy-Related):

  • Diagnostic: To investigate the cause of abnormal uterine bleeding, postmenopausal bleeding, or to screen for endometrial cancer or hyperplasia. Tissue samples are sent to a pathology lab for analysis.

  • Therapeutic: To treat conditions such as heavy menstrual bleeding (menorrhagia), to remove residual placental tissue after childbirth (retained products of conception), or to remove endometrial polyps or submucosal fibroids.

This fundamental distinction between an obstetric and a gynecological context is the first and most critical fork in the coding road.

3. The Architecture of ICD-10-PCS: A Brief Primer

ICD-10-PCS is a multi-axial coding system where each code is composed of seven alphanumeric characters. Each character represents a specific aspect of the procedure. Unlike its predecessor in ICD-9-CM, PCS is not based on common nomenclature but on a logical structure built from these components. Understanding this structure is non-negotiable for accurate coding.

The seven characters represent:

1. Section: The broadest category (e.g., Medical and Surgical, Obstetrics).

2. Body System: The general physiological system (e.g., Female Reproductive System).

3. Root Operation: The objective of the procedure—the single most important conceptual element (e.g., Extraction, Excision).

4. Body Part: The specific anatomical site where the root operation was performed.

5. Approach: The technique used to reach the operative site (e.g., Via Natural or Artificial Opening).

6. Device: Any device that remains after the procedure is completed.

7. Qualifier: Provides additional information about the procedure (e.g., Diagnostic).

For a D&C, we are almost exclusively working within the Medical and Surgical section (character 1: 0) and the Female Reproductive System body system (character 2: U). The subsequent characters, especially the Root Operation, will be determined by the purpose of the D&C as documented in the operative report.

4. Deconstructing the D&C: The Critical First Step – Identifying the Purpose

The operative report is your roadmap. The coder must read it meticulously, searching for key phrases that reveal the intent of the procedure. The single most important question to answer is: Was the procedure performed for an obstetric reason (involving a current or recent pregnancy) or a gynecological reason (non-pregnancy-related)?

Clues in the Documentation:

• Obstetric Context: Look for terms like “spontaneous abortion,” “incomplete abortion,” “missed abortion,” “retained products of conception,” “therapeutic abortion,” “elective termination,” “molar pregnancy,” “blighted ovum,” or references to gestational age.

• Gynecological Context: Look for terms like “abnormal uterine bleeding,” “menorrhagia,” “postmenopausal bleeding,” “endometrial biopsy,” “suspected hyperplasia,” “endometrial cancer,” “dysfunctional uterine bleeding,” “polyps,” or “submucosal fibroids.”

Once this primary distinction is made, we can proceed to select the correct Root Operation.

5. Root Operation: Extraction – The Obstetric D&C

For a D&C performed to manage a miscarriage (spontaneous abortion) or to remove other products of conception from a failed or completed pregnancy, the correct root operation is Extraction.

• ICD-10-PCS Definition of Extraction: “Pulling out or off all or a portion of a body part by the use of force.” The key here is the removal of a “foreign body” in the context of the uterus. In an obstetric scenario, the products of conception (POC)—the fetus, placenta, and associated tissues—are considered a foreign body that needs to be removed from the endometrial cavity. The curette or suction device is the “force” used to pull this material out.

Building the Code for an Obstetric D&C (Extraction):

• Section: 0 – Medical and Surgical

• Body System: U – Female Reproductive System

• Root Operation: 9 – Extraction

• Body Part: The body part character refers to the uterus, specifically the Endometrium.

  • Character 4: T – Endometrium

• Approach: The approach for a standard D&C is virtually always via a natural orifice.

  • Character 5: 7 – Via Natural or Artificial Opening

  • Character 6: 8 – Via Natural or Artificial Opening Endoscopic (If a hysteroscope was used, which is common in modern practice to visualize the cavity. If no scope was used, it would be just Character 5: 7, and Character 6 would be Z – No Device).

• Device: Since no device remains after the procedure, this character is “No Device.”

  • Character 6 (if no scope): Z – No Device

  • Character 7 (if scope used): Z – No Device

• Qualifier: For an Extraction, the qualifier is used to specify a diagnostic procedure. However, an obstetric D&C is typically therapeutic. Therefore, the qualifier is “No Qualifier.”

  • Character 7 (if no scope): Z – No Qualifier

  • Character 8 (if scope used): Z – No Qualifier

Example Codes for Obstetric D&C:

• 10T97ZZ – Extraction of Endometrium, Via Natural or Artificial Opening

  • Use Case: Suction D&C for an incomplete miscarriage at 8 weeks gestation, performed without hysteroscopic guidance.

• 10T97ZZ – Extraction of Endometrium, Via Natural or Artificial Opening Endoscopic

  • Use Case: D&C with hysteroscopy for removal of retained placental fragments 4 weeks postpartum.

6. Root Operation: Excision – The Gynecological Diagnostic and Therapeutic D&C

When a D&C is performed for non-pregnancy-related reasons, such as to diagnose the cause of abnormal bleeding or to remove a discrete lesion like a polyp, the correct root operation is Excision.

• ICD-10-PCS Definition of Excision: “Cutting out or off, without replacement, a portion of a body part.” The key distinction from Extraction is that Excision involves cutting out a portion of the body part itself (the endometrium), rather than pulling out a foreign body from it. The objective is often to obtain tissue for pathology (a biopsy) or to remove a focal abnormality.

Building the Code for a Gynecological D&C (Excision):

• Section: 0 – Medical and Surgical

• Body System: U – Female Reproductive System

• Root Operation: B – Excision

• Body Part: T – Endometrium

• Approach: 7 – Via Natural or Artificial Opening (or 8 for endoscopic)

• Device: Z – No Device

• Qualifier: This is a critical character for Excision. It specifies whether the procedure was diagnostic.

  • Character 7: X – Diagnostic (The tissue is removed primarily for pathologic examination.)

  • Character 7: Z – No Qualifier (The tissue is removed for a therapeutic purpose, e.g., to treat menorrhagia, and the pathology specimen is incidental.)

Example Codes for Gynecological D&C:

• 0UBT7ZX – Excision of Endometrium, Via Natural or Artificial Opening, Diagnostic

  • *Use Case: A 45-year-old patient with intermenstrual bleeding undergoes a D&C. The surgeon’s primary intent is to sample the endometrium to rule out hyperplasia or cancer. The operative report states “D&C for endometrial biopsy.”*

• 0UBT7ZZ – Excision of Endometrium, Via Natural or Artificial Opening, No Qualifier

  • Use Case: A patient with documented menorrhagia unresponsive to medication undergoes a D&C for treatment. The procedure is performed to remove the endometrial lining to reduce bleeding. Tissue is sent to pathology as a matter of routine, but the primary goal is therapeutic.

7. Root Operation: Abortion – The Elective Termination D&C

For a procedure performed with the specific intent of terminating a live pregnancy (elective or therapeutic abortion for maternal health), a different section of ICD-10-PCS is used: the Obstetrics section.

• Section: 1 – Obstetrics

This section has its own set of root operations tailored to pregnancy. The relevant root operation here is Abortion.

• ICD-10-PCS Definition of Abortion: “Artificially terminating a pregnancy.”

Building the Code for an Elective Termination D&C (Abortion):

• Section: 1 – Obstetrics

• Body System: 0 – Pregnancy

• Root Operation: 9 – Abortion

• Body Part: The body part character represents the products of conception.

  • Character 4: 3 – Products of Conception

• Approach: 0 – Open (This is a legacy term; for a D&C, the approach is still 0)

• Device: Z – No Device

• Qualifier: Z – No Qualifier

Example Code for Elective Termination D&C:

• 10903Z9 – Abortion of Products of Conception, Open Approach

  • *Use Case: A suction D&C performed for an elective termination of an 8-week intrauterine pregnancy.*

It is vital to note the distinction: a D&C for a spontaneous miscarriage (a pregnancy that has already failed) is coded in the Medical and Surgical section with Root Operation Extraction. A D&C for an artificially induced termination of a live pregnancy is coded in the Obstetrics section with Root Operation Abortion.

8. Dilation and Curettage with Hysteroscopy: A Combined Approach

It is increasingly common for a D&C to be performed with the aid of a hysteroscope. A hysteroscope is a thin, lighted telescope inserted through the cervix into the uterus, allowing the surgeon to visualize the uterine cavity directly. This enhances the accuracy of the procedure, allowing for targeted biopsies and the identification of polyps or fibroids that might be missed by a blind curettage.

From a coding perspective, the use of a hysteroscope affects the Approach character. As seen in the examples above, when a hysteroscope is used, the Approach character becomes 8 – Via Natural or Artificial Opening Endoscopic.

• Extraction with Hysteroscopy: 10T97ZZ

• Excision with Hysteroscopy (Diagnostic): 0UBT8ZX

If a polyp is visualized and removed during the hysteroscopy, this may constitute a separate procedure that needs its own code, typically Excision of the polyp from the specific body part (e.g., Endometrial Polyp).

9. Anatomical Specificity: Navigating the Body System and Body Part Characters

For all D&C procedures in the Medical and Surgical section, the Body Part is consistently the Endometrium (T). The endometrium is the specific tissue being curetted. It is incorrect to use the body part “Uterus” in its entirety for a D&C, as the procedure does not involve the entire muscular wall (myometrium) of the uterus.

10. The Approach Character: Open, Percutaneous, or Via Natural Opening?

For a standard D&C, the approach is always via the natural opening of the cervix. Therefore, the Approach character is 7 – Via Natural or Artificial Opening. If a hysteroscope is used, it becomes 8 – Via Natural or Artificial Opening Endoscopic. An “Open” approach (0) would refer to a procedure like a hysterotomy, which is a completely different surgery and not a D&C.

11. The Device Character: A Crucial, Often Overlooked, Component

In a straightforward D&C, no device is left in place. Therefore, the Device character is Z – No Device. This character would only be used if, for example, a intrauterine device (IUD) was removed during the same procedure, but that would be a separate root operation (Removal).

12. Putting It All Together: Real-World Coding Scenarios and Table

The following table synthesizes the information above, providing a clear, at-a-glance guide to code selection based on clinical intent.

 ICD-10-PCS Code Selection for Dilation and Curettage (D&C)

13. Common Pitfalls and How to Avoid Them

1. Confusing Extraction with Excision: This is the most common error. Remember: Pregnancy context = Extraction. Non-pregnancy diagnostic/therapeutic = Excision.

2. Misapplying the Abortion Root Operation: Only use the Obstetrics section and the Abortion root operation for elective or therapeutically induced terminations of a live pregnancy. Do not use it for spontaneous abortions (miscarriages).

3. Incorrect Body Part: Always use Endometrium, not “Uterus.”

4. Overlooking the Diagnostic Qualifier: For an Excision, failing to assign the X qualifier when the procedure is explicitly documented as a biopsy or for diagnostic purposes is a mistake that can affect reimbursement and data tracking.

5. Relying on Memory Instead of Documentation: Never assume the code based on the procedure name “D&C.” Always, without exception, read the entire operative report, the preoperative diagnosis, and the postoperative diagnosis to determine the true intent of the procedure.

14. The Importance of Physician Documentation and Collaboration

The coder is entirely dependent on the clarity and specificity of the physician’s documentation. Vague terms like “D&C for bleeding” are insufficient. Coders should work collaboratively with physicians and clinical staff to improve documentation. Encourage providers to be explicit:

• Instead of: “D&C performed.”

• Use: “Dilation and curettage performed for incomplete spontaneous abortion at 12 weeks gestation.”

• Or: “Hysteroscopy with D&C for diagnostic evaluation of postmenopausal bleeding.”

A robust clinical documentation improvement (CDI) program can be invaluable in ensuring that the medical record supports the codes that are assigned, protecting the facility from audit risks and ensuring accurate reimbursement.

15. Conclusion: Precision in Coding is Precision in Care

The journey to accurately coding a Dilation and Curettage procedure in ICD-10-PCS is a testament to the sophistication of modern medical coding. It requires a coder to be part linguist, part detective, and part clinician. By moving beyond rote memorization and embracing a conceptual understanding of root operations—distinguishing the removal of a foreign body (Extraction) from the resection of tissue (Excision) and the termination of a pregnancy (Abortion)—we elevate our practice. This precision ensures that the story told by the data is true, supporting not only the financial health of an institution but also the integrity of patient records, public health data, and clinical research. In the world of healthcare, precision in coding is, ultimately, an integral component of precision in patient care.

16. Frequently Asked Questions (FAQs)

Q1: What is the ICD-10-PCS code for a D&C after a miscarriage?
A1: The code is 10T97ZZ (Extraction of Endometrium, Via Natural or Artificial Opening) or 10T97ZZ (if a hysteroscope was used). This is because a miscarriage involves removing retained products of conception, which is defined as an Extraction.

Q2: How do I code a D&C that is both diagnostic and therapeutic?
A2: ICD-10-PCS coding rules require you to code the root operation that most accurately reflects the principal objective of the procedure. If the surgeon’s primary intent was to obtain a biopsy, code it as an Excision with a Diagnostic qualifier (0UBT7ZX). If the primary intent was to treat heavy bleeding, and a biopsy was incidental, code it as an Excision with No Qualifier (0UBT7ZZ). The operative report’s indications and preoperative diagnosis are key.

Q3: What is the difference between the Root Operations “Extraction” and “Excision” for a D&C?
A3: Extraction is used when the goal is to pull out a foreign body (e.g., products of conception from a miscarriage). Excision is used when the goal is to cut out a portion of a body part itself (e.g., the endometrial lining for biopsy or to treat a condition). The context of pregnancy is the deciding factor.

Q4: Why is the Approach for an abortion D&C coded as “Open” when it’s performed through the cervix?
A4: This is a known idiosyncrasy in the ICD-10-PCS system for the Obstetrics section. The approach character for all procedures in the Pregnancy body system is defined as “Open,” regardless of the actual surgical technique (vaginal, abdominal, etc.). This is a legacy definition and must be applied as per the official coding guidelines.

Q5: If a polyp is found and removed during a hysteroscopic D&C, do I need two codes?
A5: Yes, typically you would. You would code the Excision of the endometrial polyp (e.g., 0UBT7ZZ or 0UBT8ZZ) and you may also code the Inspection of the uterine cavity via hysteroscopy (0UJD8ZZ) if it was a separate and distinct part of the procedure. The D&C (Excision of Endometrium) would be coded separately if a general curettage was also performed. Adhere to the coding guidelines regarding separate procedures.

Date: November 20, 2025
Author: Dr. Eleanor Vance, MD, CCS-P

Disclaimer: The information contained in this article is for educational and informational purposes only and is not intended as a substitute for professional medical coding advice, diagnosis, or treatment. Always seek the advice of your facility’s certified coding professional or consultant with any questions you may have regarding a medical condition or code assignment. The author and publisher are not responsible for any errors or omissions or for any consequences from the application of the information presented.