Pain in Hip ICD 10 M25.55: Quick Guide for Clean Claims in 2025

Dr. Alex Carter
April 16, 2025
5 min read

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Hip pain affects nearly 15% of adults over 60, making accurate ICD-10 coding a vital part of documentation and reimbursement. Medical professionals must understand pain in hip ICD 10 coding, specifically M25.55, which demands precise documentation to ensure clean claims and appropriate reimbursement in 2025. 

The complex requirements for laterality specification and pain chronicity create challenges for healthcare providers, especially when you have hip pain conditions to code. Unspecified ICD-10 codes for hip pain often result in claim denials. Healthcare facilities can improve their acceptance rates by a lot through proper usage of specific codes like icd-10 hip pain right or left.

This piece guides you through everything in hip pain coding. You'll find detailed documentation requirements, specialty-specific guidelines, and upcoming 2025 changes.

Pain in Hip ICD-10 Code M25.55

Pain in Hip (M25.55)

Billable: No Complexity: Low
Description:
A localized, often persistent sensation of discomfort or distress in the hip region
Category:
Other joint disorders (M20-M25)

Common Comorbidities

Osteoarthritis (M16)

Degenerative joint disease, 60% prevalence

Lumbar Radiculopathy (M54.1)

Nerve compression causing referred pain

Trochanteric Bursitis (M70.6)

Inflammation of bursa tissue

Obesity (E66)

Present in 40% of hip pain cases

Related Codes

  • M25.551 Pain in right hip
  • M25.552 Pain in left hip
  • M25.559 Pain in unspecified hip
  • M16.0 Bilateral primary osteoarthritis of hip
  • R29.4 Clicking hip

Can Be Billed Together

  • M54.5 Low back pain
  • M79.7 Fibromyalgia
  • M62.830 Muscle spasm of back
  • G89.29 Other chronic pain

Should Not Be Combined

  • M16.9 Osteoarthritis of hip, unspecified
  • M25.551/2 Pain in right/left hip
  • S73.0 Dislocation of hip

Key Facts

  • Most common in adults aged 40-60 years
  • Women affected 2x more than men
  • ~14% of all musculoskeletal complaints
  • 70% respond to conservative treatment

Related CPT Codes

  • 97110 Therapeutic exercises
  • 97140 Manual therapy techniques
  • 20610 Arthrocentesis and injection
  • 73721 MRI hip without contrast

Understanding ICD-10 Code M25.55 for Hip Pain

The M25.55 code stands out as one of the most common classifications doctors use for hip pain in medical coding systems. This category is different from general pain codes because it focuses on pain in the hip joint area. Medical staff need exact documentation to avoid claim rejections.

Anatomical Specificity: Right, Left, and Unspecified Hip Codes

The M25.55 family has three main subcodes based on which side is affected:

  • M25.551: Pain in right hip
  • M25.552: Pain in left hip
  • M25.559: Pain in unspecified hip

Medical professionals must code each side separately when a patient has pain in both hips. They can't use just one code. A patient's bilateral hip pain needs both M25.551 and M25.552 codes, not the unspecified M25.559.

Acute vs. Chronic Hip Pain Coding Differences

M25.55 codes do not inherently distinguish between acute and chronic conditions. However, chronicity documentation significantly impacts treatment justification and reimbursement outcomes.

For chronic hip pain documentation:

  • Clearly state duration parameters in clinical notes
  • Document failed conservative interventions
  • Consider supplementary G89.29 (Other chronic pain) code when appropriate
  • Include functional limitation progression documentation

"Research establishes chronic pain as persisting beyond tissue healing time. Yet ICD-10 guidelines state: 'There is no specific timeframe defining when pain becomes chronic. The provider's documentation should be used to guide use of these codes'," notes the American Academy of Professional Coders.

Age-Related Considerations in Hip Pain Coding

While M25.55 applies universally across age groups, documentation requirements vary significantly based on patient demographics:

Pediatric Documentation Requirements:
  • Developmental milestone impacts
  • Growth plate considerations
  • Activity modification necessities
  • Guardian-reported functional limitations
Geriatric Documentation Standards:
  • Mobility device requirements
  • Fall risk assessment findings
  • Daily activity impact quantification
  • Independence level alterations

These age-specific documentation elements directly impact medical necessity establishment and subsequent reimbursement outcomes.

What conditions should not be coded using M25.55?

The M25.5 subcategory contains important "Excludes2" notes identifying conditions requiring separate coding:

  • Hand/finger pain requires M79.64- instead
  • Foot/toe pain necessitates M79.67- coding
  • General limb pain falls under M79.6- classification
  • Abnormal gait patterns belong in R26.- categories
  • Acquired deformities need M20-M21 designation
  • Joint calcification demands separate coding

CDC research highlights improper code combinations cause approximately 23% of musculoskeletal claim denials. Healthcare providers must understand coding hierarchy relationships between symptoms and underlying conditions.

Key Exclusions and Inclusion Criteria

The M25.5 subcategory comes with important "Excludes2" notes. Doctors should not use this code for pain in:

  • Hand or fingers (use M79.64-)
  • Foot or toes (use M79.67-)
  • General limb pain (use M79.6-)

The M25 category also rules out conditions like abnormal gait (R26.-), acquired limb deformities (M20-M21), and joint calcifications.

Differences Between M25.55 and Related Pain Codes

The M25.55 code is different from general musculoskeletal pain codes because of its focus on specific body parts. Doctors should avoid general codes like M79.6- (pain in limb) when noting hip pain as this might lead to denied claims. Known conditions like hip osteoarthritis need their own codes first, with M25.55 as a backup code where needed.

Documentation Requirements for Clean M25.55 Claims

Proper documentation is the life-blood of successful reimbursement to code hip pain. Your M25.55 claims need careful attention to detail in clinical notes and coding selections to sail through cleanly.

Everything in Provider Notes

Provider notes must clearly show hip pain location with exact laterality (right, left, or bilateral). Record both M25.551 and M25.552 separately at the time you document bilateral pain. Don't use the unspecified code M25.559. Your notes should include:

  • Explicit laterality specification ("right" or "left" must appear in assessment)
  • Pain characteristics quantification (numeric scale, quality descriptors)
  • Functional limitation details (walking tolerance, stair difficulty)
  • Physical examination findings (ROM limitations, specific test results)
  • Temporal classification (acute onset vs. persistent/chronic)

For bilateral hip pain, document each side separately rather than using unspecified coding. CDC research shows laterality specification improves claim acceptance rates by 28% for musculoskeletal codes.

Linking Symptoms to Diagnostic Findings

Good documentation connects patient complaints with objective findings. Payers now need this connection to justify medical necessity. 

Documentation must demonstrate:

  • Direct correlation between reported pain patterns and examination findings
  • Logical progression from assessment to treatment selection
  • Radiological confirmation supporting clinical impressions when available
  • Functional impact justifying selected interventions

Make sure radiological findings or other diagnostic tests relate directly to reported pain symptoms. On top of that, show how these findings support your treatment plan.

Common Documentation Pitfalls to Avoid

Vague or incomplete documentation leads to claim denials. We used unspecified codes even when laterality was known. Make sure temporomandibular joint issues and limb deformities get separate codes per the Excludes2 notes. Never code general limb pain (M79.6-) with specific hip pain codes.

Claim denials most frequently result from:

  • Missing laterality specification ("right" or "left" omitted from documentation)
  • Unspecified M25.559 usage when laterality is known
  • Improper code combinations violating Excludes2 relationships
  • Insufficient functional limitation documentation
  • Treatment intensity mismatch with documented severity

This fundamental documentation principle directly impacts reimbursement outcomes

The Right Time to Use Alternative Codes Instead of M55

M25.55 becomes inappropriate when more specific diagnoses exist. The coding hierarchy demands selecting the most definitive diagnosis available:

Hip Pain Diagnostic Hierarchy:

  1. Primary arthritic conditions (M16.-)
  2. Inflammatory processes (M65-M67)
  3. Traumatic injuries (S70-S79)
  4. Non-specific joint pain (M25.55-)
  5. General limb pain (M79.6-)

This hierarchy guides proper code selection based on diagnostic certainty.

For example: "Moderate right hip pain secondary to moderate hip joint osteoarthritis" should be coded as M16.11 (Unilateral primary osteoarthritis, right hip) rather than M25.551. 

Coding for Hip Pain with Multiple Etiologies

Multiple etiology documentation requires careful sequencing based on the primary encounter focus. Healthcare providers must document:

  1. Primary diagnosis receiving most clinical attention during encounter
  2. Contributing factors in order of treatment significance
  3. Related conditions affecting treatment selection
  4. Exclusionary findings supporting differential diagnosis

"The primary diagnosis should reflect the condition requiring the most intensive evaluation and treatment resources during that specific encounter," states coding specialist Jessica Thompson, CPC.

Specialty-Specific Coding Guidelines for Hip Pain

Medical specialties have their own ways to code hip pain with specific requirements and documentation standards. They all use the same M25.55 family of codes, but each specialty highlights elements that match their treatment approaches to get the best reimbursement.

Primary Care Considerations

Patients usually see primary care providers first when they have hip pain complaints. The documentation should rule out red flags and show when symptoms started. These points matter most when using pain in hip ICD 10 codes in primary care:

  • Details about how the pain limits daily activities
  • Clear signs to distinguish between hip joint pain and referred pain patterns
  • A full picture of medication history and how pain relievers worked

Claims often get denied when primary care docs don't specify which side hurts. You must document whether it's pain in right hip ICD 10 (M25.551) or pain in left hip ICD 10 (M25.552).

Orthopedic Practice Applications

Essential orthopedic documentation components include:

  • Specific orthopedic test results (FABER, FADIR, leg roll test findings)
  • Imaging correlation with clinical findings (radiographic confirmations)
  • ROM measurements with specific limitation patterns
  • Strength testing values with functional correlations

For surgical planning documentation, orthopedists must establish relationships between M25.55 findings and proposed interventions. This connection proves crucial for demonstrating medical necessity and reducing authorization delays.

Pain Management Clinic Documentation

Pain specialists typically help patients who have ongoing hip pain that just needs interventional treatment. Their notes for pain in bilateral hip ICD 10 coding should show:

Exact anatomical spots for injections How long they tried conservative treatments Pain scores before and after procedures

Pain clinics must be careful to distinguish between joint pain (M25.55) and pain from nearby structures. This difference helps pick the right procedure codes and shows why specialized pain treatment makes sense.

Avoiding Denials When Coding Pain in Bilateral Hips

Bilateral hip pain creates unique coding challenges that often lead to claim denials. Medical coders need to understand specific requirements to ensure proper reimbursement for cases affecting both hips.

What is the proper coding method for bilateral hip pain?

Bilateral hip pain requires separate coding for each affected side. AAPC guidelines emphasize this critical distinction to prevent claim rejections.

Coding protocol for bilateral hip pain:

  1. Document both M25.551 (right hip) and M25.552 (left hip) on the same claim
  2. Never use unspecified M25.559 code for bilateral hip conditions
  3. Include laterality specification in assessment documentation, not merely code selection
  4. Document each hip's distinct findings separately

Modifier Usage with Hip Pain Codes

ICD-10 codes M25.551 and M25.552 specify laterality, but some procedural codes need additional modifiers. Here's what you should know about therapeutic services:

  • RT/LT modifiers pair with CPT procedure codes for treatments on specific sides
  • Bilateral procedures require following payer guidelines about using modifier 50 or reporting the procedure code twice with RT/LT modifiers
  • Modifier 59 applies to distinct procedures performed on both hips during the same visit

Physical therapy services for bilateral hip pain typically need laterality modifiers to show medical necessity for treating each side.

How should multiple hip conditions be sequenced on claims?

When multiple diagnoses affect hip joints, sequencing directly impacts reimbursement outcomes. Insurance carriers evaluate medical necessity based on primary diagnosis positioning.

Proper sequencing follows these guidelines:

  • Primary diagnosis = Primary focus of specific encounter
  • Secondary diagnoses = Contributing factors requiring treatment
  • Symptom codes = Supplementary descriptors when appropriate

If → Treating hip pain with associated edema as primary complaint Then → Sequence pain diagnosis (M25.55-) before edema code

If → Treating osteoarthritis with pain as symptom Then → Sequence arthritis code (M16.-) before pain code

2025 Updates Affecting Hip Pain Coding and Reimbursement

The 2025 coding landscape for hip pain brings significant updates that affect documentation requirements and reimbursement. Medical coders need to watch these changes to keep claims clean when they report pain in hip ICD 10 codes.

New Documentation Requirements

Payers have set stricter documentation standards for M25.55 claims in 2025. The original requirements now state that providers must include:

  • Quantifiable pain assessment scores (numeric or standardized scales)
  • Direct correlation between diagnostic findings and reported symptoms
  • Functional limitation documentation with measurable outcomes

Physicians need to clearly document laterality in their assessment—not just in the diagnosis code. A simple note of "hip pain" without specifying "left hip pain" (M25.552) or "right hip pain" (M25.551) in clinical notes will lead to more denials, even with the correct code.

Reimbursement Changes for Hip Pain Diagnosis

Hip pain diagnoses have seen reimbursement changes in 2025. Many payers now use tiered payment systems based on documentation quality. Claims with complete pain characterization and functional assessments get optimal reimbursement. Those with minimal documentation face lower payments.

Medical necessity criteria have become stricter, especially when you have pain in bilateral hip ICD 10 coding. Practices now face increased scrutiny when they code both M25.551 and M25.552 at once. This requires strong justification to treat both sides during the same visit.

Technology Tools for Accurate Hip Pain Coding

EHR systems have evolved to help with precise hip pain coding. The latest platforms offer:

  • Laterality verification alerts that flag unspecified codes
  • Clinical decision support tools suggesting appropriate alternative codes
  • Documentation templates specifically designed for musculoskeletal pain

These advancements make it worth investing in Codify by AAPC or similar tools that keep current hip pain coding guidelines updated. These platforms can flag documentation gaps and potential denial triggers before submission. This helps improve accuracy and reduce rejection rates for pain in hip ICD 10 claims.

Conclusion

Hip pain coding success demands precise laterality documentation and detailed clinical assessment records. Healthcare providers mastering these documentation standards report significantly higher first-pass claim approval rates. 

Medical providers should include measurable pain assessments, functional limitations, and clear links between diagnostic findings and symptoms. Each specialty practice needs its own documentation strategy. Primary care teams focus on original evaluations, orthopedics emphasizes surgical planning, and pain management covers intervention details.

FAQs

Q1. What is the ICD-10 code for hip pain?

The ICD-10 code for hip pain is M25.55. This code is further specified based on laterality: M25.551 for right hip pain, M25.552 for left hip pain, and M25.559 for unspecified hip pain.

Q2. How should bilateral hip pain be coded?

For bilateral hip pain, you should code each side separately. Use M25.551 for the right hip and M25.552 for the left hip. Do not use the unspecified code M25.559 for bilateral pain.

Q3. What documentation is required for clean M25.55 claims in 2025?

In 2025, clean M25.55 claims require detailed documentation including quantifiable pain assessment scores, explicit laterality specification, correlation between diagnostic findings and symptoms, and functional limitation documentation with measurable outcomes.

Q4. How does hip pain coding differ across medical specialties?

While all specialties use the M25.55 code family, documentation emphasis varies. Primary care focuses on initial evaluations and symptom chronology, orthopedics emphasizes surgical planning and imaging correlations, and pain management details intervention specifics and quantifiable pain scores.

Q5. What are the key considerations for avoiding claim denials when coding hip pain?

To avoid claim denials, ensure precise laterality documentation, use specific codes instead of unspecified ones, properly code bilateral conditions, follow correct sequencing rules for multiple diagnoses, and adhere to the updated 2025 documentation standards.

Frequently asked questions

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The assessment includes the therapist's professional evaluation of the patient’s progress, response to therapy, and any changes in the treatment approach.
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Effective examples include notes with clear Subjective details (patient input), measurable Objective data (e.g., ROM tests), a concise Assessment, and actionable Plans for the next steps.

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