ICD-10 Code R10.2: Pelvic and Perineal Pain

Key Takeaways

ICD-10 Code R10.2 classifies pelvic and perineal pain under Chapter 18 (R00-R99) of the ICD-10-CM system.

As of October 1, 2025, R10.2 is a non-billable parent code; claims require one of five billable subcodes (R10.20-R10.24).

Vulvodynia (N94.81) carries a Type 1 Excludes note, meaning it must never be coded alongside R10.2 or any subcode.

Pabau’s claims management software helps pelvic health and OB/GYN practices select the correct subcode and reduce claim denials.

Pelvic pain accounts for roughly 10% of all outpatient gynecology referrals in the US, yet claim denials tied to unspecific diagnosis codes remain a persistent revenue leak for practices. ICD-10 Code R10.2 was the go-to code for pelvic and perineal pain for years. A significant change took effect October 1, 2025: R10.2 was converted to a non-billable parent code, and five laterality-specific subcodes replaced it for billing purposes. Practices still submitting claims under the bare R10.2 code will face systematic rejections. This guide covers the full subcode hierarchy, documentation requirements, excludes notes, and the CPT codes most commonly paired with this diagnosis.

Coders working in pelvic health, urogynecology, physical therapy, and primary care will encounter this code family regularly. What follows is a structured reference covering every subcode, the key excludes provisions, and the documentation specificity payers now expect.

ICD-10 Code R10.2: Definition and Clinical Classification

ICD-10 Code R10.2 falls under ICD-10-CM Chapter 18 (Symptoms and Signs Not Elsewhere Classified, R00-R99), within category R10 (Abdominal and Pelvic Pain). According to the Centers for Medicare and Medicaid Services (CMS) ICD-10-CM resources, this code family classifies pain arising from the pelvic region and perineum when no definitive underlying diagnosis has been established or when the symptom is clinically significant in its own right.

The pelvis encompasses the bony basin housing the lower urinary tract, reproductive organs, and portions of the large intestine. The perineum is the anatomical region between the pubic symphysis and the coccyx. Pain in either area can present across multiple specialties, from obstetrics and gynecology to urology, colorectal surgery, and pelvic health physical therapy practices.

Code Hierarchy: Where R10.2 Sits

• R00-R99: Symptoms, signs, and abnormal clinical findings not elsewhere classified (Chapter 18)
• R10-R19: Symptoms and signs involving the digestive system and abdomen
• R10: Abdominal and pelvic pain (parent block)
• R10.2: Pelvic and perineal pain (non-billable parent as of FY2026)
• R10.20-R10.24: Billable subcodes (R10.20-R10.23 by laterality; R10.24 by anatomical site)

The CDC/NCHS ICD-10-CM web tool confirms R10.2 has been converted to a parent/non-billable classification. Any claim submitted with R10.2 as the only diagnosis code will be rejected by payers requiring the highest level of specificity.

Pelvic and Perineal Pain: Clinical Overview

Pelvic and perineal pain presents as chronic or acute discomfort in the lower abdominal cavity, pelvic floor, or perineal tissues. It is a symptom code, not a definitive diagnosis. Clinicians use R10.2-series codes when the underlying cause has not yet been established or when the pain itself warrants separate clinical attention alongside a known condition.

Common clinical presentations include cyclical pelvic pain in women of reproductive age, non-cyclical chronic pelvic pain, post-procedural pelvic discomfort, and perineal pain following childbirth or surgical intervention. Male patients present with pelvic pain in the context of prostatitis, urinary obstruction, or musculoskeletal dysfunction. Practitioners at OB/GYN and women’s health practices and sexual health clinics should apply the correct laterality subcode based on documented examination findings.

As a symptom code under ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), R10.2 and its subcodes may be listed as the principal diagnosis when no definitive underlying condition is identified. When a definitive diagnosis is known, codes such as N80.x (endometriosis), N30.x (cystitis), or N94.0 (Mittelschmerz) should be used instead. R10.2-series codes may accompany a definitive diagnosis in circumstances where the pain is clinically significant and not a routine symptom of that condition.

R10.2 Subcodes: R10.20 through R10.24 (October 2025 Expansion)

Effective October 1, 2025, the ICD-10 Code R10.2 parent was expanded into five billable subcodes providing laterality detail. This change was introduced to align pelvic pain coding with the specificity requirements already in place for other pain categories and to reduce the high volume of “unspecified” claims that payers have increasingly flagged for additional documentation requests.

R10.20: Pelvic and Perineal Pain, Unspecified Side

Use R10.20 when the clinical documentation describes diffuse pelvic pain without laterality, or when the practitioner cannot clinically determine whether the pain is unilateral or bilateral. This is the closest equivalent to the former R10.2 in terms of specificity. It is billable, but payers may request documentation justifying why laterality could not be determined. Practitioners should document the clinical rationale.

R10.21: Pelvic and Perineal Pain, Right Side

Assign R10.21 when examination findings, patient-reported symptoms, or imaging localise the pain to the right side of the pelvis. Documentation must include a clear reference to right-sided location. This applies equally to male and female patients.

R10.22: Pelvic and Perineal Pain, Left Side

Assign R10.22 when the pain is documented as left-sided. Left-sided pelvic pain in female patients frequently accompanies ovarian pathology or left adnexal tenderness. When a definitive ovarian diagnosis is made (such as N83.x ovarian cyst), that code takes precedence and R10.22 is used as an additional code only if clinically warranted.

R10.23: Pelvic and Perineal Pain, Bilateral

R10.23 applies when the patient presents with pain affecting both sides of the pelvic region simultaneously. Chronic bilateral pelvic pain without a known organic cause is a common presentation in pelvic floor dysfunction and interstitial cystitis work-ups. Document bilateral findings explicitly in the clinical note before assigning this subcode.

R10.24: Suprapubic Pain

R10.24 is distinct from the other four subcodes: it captures pain localised to the suprapubic region (the area above the pubic bone) rather than indicating laterality. Common clinical contexts include lower urinary tract disorders, bladder conditions such as interstitial cystitis and urinary tract infections, post-catheterisation discomfort, and lower abdominal pain localised to the bladder area. Do not default to R10.24 when the pain is generalised pelvic pain; use the appropriate laterality code (R10.20-R10.23) instead and document the specific anatomical location.

Excludes Notes and Differential Diagnosis Coding

The excludes structure for ICD-10 Code R10.2 is clinically significant. Understanding which conditions are excluded prevents coding errors that can trigger audits or claim denials.

Type 1 Excludes: Vulvodynia (N94.81)

A Type 1 Excludes note means the two conditions are mutually exclusive. Vulvodynia (N94.81) must never appear on the same claim as R10.2 or any R10.2x subcode. Vulvodynia has a distinct etiology, diagnostic criteria, and treatment pathway. Coders who submit both codes will generate a Type 1 Excludes conflict error, which results in claim rejection. If the patient has vulvodynia, code N94.81 alone; do not layer in a pelvic pain code unless a separate, distinct pelvic pain condition is also documented and clinically separate.

Differential Diagnosis: Related Codes to Consider

Before assigning any R10.2x subcode, rule out the following definitive diagnoses. When one of these is confirmed, it should replace or accompany the symptom code based on ICD-10-CM Official Guideline instructions. For broader context on how symptom codes interact with related ICD-10 symptom code series, the same principal-vs-symptom logic applies across Chapter 18.

• N80.x: Endometriosis (various anatomical sites; use the most specific subcode)
• N30.x: Cystitis, including N30.10 (interstitial cystitis without hematuria)
• N94.0: Mittelschmerz (mid-cycle ovulatory pain; distinct code, do not use R10.2x alongside)
• N94.89: Other specified conditions associated with female genital organs
• R10.0: Acute abdomen (when rigidity and surgical urgency are documented)
• R10.30: Lower abdominal pain, unspecified (for pain localised above the pelvis)
• R10.84: Generalised abdominal pain (when pain is diffuse and not anatomically localised to the pelvis)

Documentation Requirements for ICD-10 Code R10.2 Subcodes

Switching from R10.2 to the correct subcode requires that clinical documentation support the specificity claimed on the claim. Coders cannot infer laterality; it must be explicitly stated by the treating clinician in the medical record. Missing documentation is the primary reason for down-coding from a laterality-specific subcode back to R10.20 (unspecified).

The following documentation elements should be present for each R10.2x subcode to be defensible in an audit:

• Location descriptor: Right, left, bilateral, or perineal explicitly stated in the history of present illness, physical examination, or assessment section
• Duration and character: Acute vs. chronic, constant vs. intermittent, sharp vs. dull (supports medical decision-making level)
• Associated symptoms: Dyspareunia, dysuria, abnormal bleeding, urinary urgency (supports differential diagnosis workup)
• Negative findings: What was ruled out and how (imaging, labs) to justify symptom code use as principal diagnosis
• Male vs. female context: Anatomical context should be clear; pelvic pain in male patients requires documentation distinguishing from inguinal, scrotal, or rectal pain

Practices using claims management software can build code-specific documentation prompts into their encounter templates, reducing the back-and-forth between coders and clinicians when laterality details are missing from initial notes.

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Associated CPT Codes Commonly Billed with R10.2

Pelvic and perineal pain diagnoses support a wide range of evaluation, diagnostic, and procedural CPT codes. The following are most frequently paired with R10.2x in outpatient, gynecology, and pelvic health settings.

For E&M services, the complexity level must be supported by the documented medical decision-making elements, not just the diagnosis. A patient presenting with new unilateral pelvic pain requiring review of prior imaging and ordering of additional labs will typically support a 99214 or 99215 rather than a 99213. Consult the AAPC’s ICD-10-CM code lookup for additional crosswalk references between R10.2x codes and specific procedures.

Payer Considerations and Claim Denial Prevention

Medicare and most commercial insurers apply medical necessity edits that flag non-billable codes at the time of claim submission. Since R10.2 itself is no longer billable as of FY2026, submitting it will trigger an automatic denial under the “code requires greater specificity” edit. Medicaid policies vary by state, but most state Medicaid programs follow the CMS ICD-10-CM Official Tabular List, meaning the same specificity requirement applies.

Private insurers increasingly use automated claim scrubbing tools that cross-reference submitted codes against the current FY tabular list. A mismatch between claim date (on or after October 1, 2025) and the non-billable R10.2 code will generate a remark code requesting resubmission with a valid subcode. Practices should update their digital intake forms and encounter documentation workflows to collect laterality information at the point of care, before the coding step, so rework is minimised.

Gender-specific considerations also affect payer review. Some Medicare Advantage plans apply gender edits that flag R10.2x codes on male patient claims when the associated CPT code is gynecological in nature. Ensure the billed procedure code is gender-appropriate or include a modifier and supporting documentation when treating male patients for pelvic pain with procedures typically associated with female anatomy.

Maintaining accurate structured patient records that capture laterality at each visit reduces coding ambiguity and gives coders clear documentation to work from without requiring addenda from clinicians.

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Conclusion

The October 2025 expansion of ICD-10 Code R10.2 into five laterality-specific subcodes is a meaningful clinical and administrative change. Practices that continue submitting R10.2 as the billed diagnosis code will face consistent claim rejections, documentation requests, and potential audit exposure.

The fix is straightforward: update encounter templates to prompt for laterality, train providers to document right, left, bilateral, or suprapubic location explicitly, and verify that your EHR or claims management software reflects the FY2026 subcode structure. Pabau’s integrated claims and documentation tools help pelvic health and OB/GYN practices keep coding accurate from the first patient note to final claim submission. Book a demo to see how it works in practice.

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