M00.171 Pneumococcal arthritis, right ankle and foot

✓ Billable HCC ICD-10-CM 2026

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The ICD-10-CM code for Pneumococcal arthritis, right ankle and foot is M00.171 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
M00-M02: Infectious arthropathies (M00-M02)
Category M00
130 codes (97 billable)
FY2026 Status
Stable since FY2024

U.S. Hospital Utilization

M00.171 appeared in too few sampled U.S. inpatient stays in 2022 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 13 header

13. Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.13
Osteoporosis without pathological fracture (M81)

Category M81, Osteoporosis without current pathological fracture, is for use for patients with osteoporosis who do not currently have a pathologic fracture due to the osteoporosis, even if they have had a fracture in the past. For patients with a history of osteoporosis fractures, status code Z87.310, Personal history of (healed) osteoporosis fracture, should follow the code from M81.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.13.d.1

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference M00.171 with the canonical source and edition:

M00.171 — Pneumococcal arthritis, right ankle and foot. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/M00.171

Canonical URL: https://icd10codingpro.com/codes/M00.171

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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