R10.821: Right upper quadrant rebound abdominal tenderness
R10.821, right upper quadrant rebound abdominal tenderness, is listed as a covered diagnosis in 4 Medicare billing and coding articles that apply to 2 HCPCS Level II codes, including U0002 (2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19)…), U0001 (Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr…). The articles come from 4 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with R10.821 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| U0002 | 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc | Carrier judgment | — | 4 |
| U0001 | Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr diagnostic panel | Carrier judgment | — | 4 |
Medicare policy articles listing R10.821
- A58710: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing (Palmetto GBA (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L38988, L39001, L39038, L39044
- A58720: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L38988, L39001, L39038, L39044
- A58761: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L38988, L39001, L39038, L39044
- A58747: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L38988, L39001, L39038, L39044
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other R10 diagnoses (Abdominal and pelvic pain)
- R10.822 — Left upper quadrant rebound abdominal tenderness
- R10.823 — Right lower quadrant rebound abdominal tenderness
- R10.824 — Left lower quadrant rebound abdominal tenderness
- R10.825 — Periumbilic rebound abdominal tenderness
- R10.826 — Epigastric rebound abdominal tenderness
- R10.827 — Generalized rebound abdominal tenderness
- R10.829 — Rebound abdominal tenderness, unspecified site
- R10.811 — Right upper quadrant abdominal tenderness
- R10.812 — Left upper quadrant abdominal tenderness
- R10.813 — Right lower quadrant abdominal tenderness
- R10.814 — Left lower quadrant abdominal tenderness
- R10.815 — Periumbilic abdominal tenderness
- R10.817 — Generalized abdominal tenderness
- R10.84 — Generalized abdominal pain
- R10.85 — Abdominal pain of multiple sites
- R10.8A3 — Suprapubic tenderness
- R10.0 — Acute abdomen
- R10.11 — Right upper quadrant pain
- R10.12 — Left upper quadrant pain
- R10.13 — Epigastric pain
- R10.20 — Pelvic and perineal pain unspecified side
- R10.21 — Pelvic and perineal pain right side
- R10.22 — Pelvic and perineal pain left side
- R10.23 — Pelvic and perineal pain bilateral
- R10.24 — Suprapubic pain
- R10.31 — Right lower quadrant pain
- R10.32 — Left lower quadrant pain
- R10.33 — Periumbilical pain
Frequently asked questions
Does Medicare cover R10.821 (Right upper quadrant rebound abdominal tenderness)?
Medicare covers items and services, not diagnoses. 4 Medicare billing and coding articles list R10.821 as a covered diagnosis for 2 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 R10.821?
The Level II codes from the policies most specific to this diagnosis are U0002 (2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19)…, 4 articles); U0001 (Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr…, 4 articles). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list R10.821?
A58710 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing); A58720 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing); A58761 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing), and 1 more article.
What is ICD-10-CM code R10.821?
R10.821 is the ICD-10-CM code for right upper quadrant rebound abdominal tenderness, in category R10 (Abdominal and pelvic pain), chapter 18: Symptoms, signs and abnormal findings.
Next steps
- Run a reimbursement report for a device billed under U0002
- Watch U0002 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for U0002
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 18: Symptoms, signs and abnormal findings · All diagnoses · HCPCS lookup