M62.838

🦴 ICD-10-CM M62.838 — Other Muscle Spasm

Billable Code Confirmed

ICD-10-CM M62.838 is a valid, billable 7-character ICD-10-CM code for FY2026. All characters are present: M62 (category) + .8 (other specified disorders of muscle) + 3 (muscle spasm) + 8 (other site). No additional character is required.

Non-Billable Parent Codes — Never Submit These

• ❌ M62.83 — 6-character header — missing site specificity character
• ❌ M62.8 — 5-character header — missing spasm/site detail
• ❌ M62 — 3-character category header — never billable alone

Always submit M62.838 (all 7 characters) when muscle spasm at a site other than the back or calf is documented.

Clinical Context: "Other" Site — What It Means

ICD-10-CM M62.838 captures muscle spasm at sites not individually enumerated in the M62.83 subcategory — specifically sites other than the back (M62.830) and the calf (M62.831). Common clinical applications include neck muscle spasm, piriformis spasm, shoulder girdle spasm, and upper extremity spasm. If clinical documentation clearly states back or calf, those specific codes are required over M62.838.

Code Classification

ICD-10-CM Diagnosis Code — Fields for wRVU, assistant payable, and global period are not applicable. For associated inpatient procedure coding, see the ICD-10-PCS Crosswalk section below.

---

🔍 Code Description

ICD-10-CM M62.838 classifies other muscle spasm — an involuntary, sustained contraction of skeletal muscle at a site not specifically enumerated in the M62.83 subcategory (i.e., not the back or calf). The contraction may be painful or painless, localized or segmental, and can result from neurological dysfunction, metabolic disturbance, overuse, electrolyte imbalance, or idiopathic causes.

The distinction between M62.838 and R25.2 (cramp and spasm) is clinically and coding-critically important. R25.2 is a symptom code reflecting an undiagnosed or undifferentiated presentation; it carries an Excludes 1 relationship with the M62 category, meaning they cannot be reported simultaneously. When a physician has established a clinical diagnosis of muscle spasm as a disorder — rather than reporting it as an unexplained symptom — M62.838 is the correct code, not R25.2.

The “other” character (8 in the final position) explicitly captures spasm at sites not individually broken out in the M62.83 subcategory. This is a true catch-all for non-back, non-calf muscle spasm — covering piriformis syndrome-adjacent spasm, cervical paraspinal spasm, shoulder girdle hypertonicity, and forearm or hand cramping when documented as a disorder rather than a symptom.

---

🌳 Code Tree / Hierarchy

M62 — Other Disorders of Muscle
│
├── M62.8 — Other Specified Disorders of Muscle ❌ Non-billable
│ │
│ ├── M62.81 — Muscle Weakness (Generalized) ✅ Billable
│ ├── M62.82 — Rhabdomyolysis ✅ Billable
│ │
│ ├── M62.83 — Muscle Spasm ❌ Non-billable header
│ │ ├── M62.830 — Muscle Spasm of Back ✅ Billable
│ │ ├── M62.831 — Muscle Spasm of Calf ✅ Billable
│ │ └── M62.838 — Other Muscle Spasm ◀ THIS CODE ✅ Billable
│ │
│ ├── M62.84 — Sarcopenia ✅ Billable
│ ├── M62.85 — Dysfunction of Multifidus Muscles ✅ Billable
│ └── M62.89 — Other Specified Disorders of Muscle ✅ Billable
│
└── M62.9 — Disorder of Muscle, Unspecified ⚠️ Avoid — query specificity

Use the Most Specific M62.83x Available

M62.838 should only be assigned when the documented spasm site is genuinely not the back or calf. Back spasm → M62.830; Calf spasm → M62.831. Cervical paraspinals are generally captured under M62.838 given the back code maps more to the lumbar/thoracic region per clinical convention.

---

✅ Includes

The following clinical terms and scenarios map to M62.838 when the spasm site is documented as other than back or calf:

• Muscle spasm, neck / cervical paraspinal musculature
• Piriformis muscle spasm (distinct from piriformis syndrome — query etiology)
• Shoulder girdle / periscapular muscle spasm
• Upper extremity muscle spasm (forearm, hand, biceps) when documented as a clinical disorder
• Truncal muscle spasm (abdominal wall, intercostal) when not attributable to underlying cardiopulmonary or visceral pathology
• Pelvic floor muscle spasm when documented as a musculoskeletal disorder

---

❌ Excludes

Excludes 1 — Cannot Be Coded Simultaneously with M62.838

Code	Description	Note
R25.2	Cramp and spasm	Mutually exclusive — R25.2 is a symptom code; once a physician establishes the diagnosis as a disorder, M62.838 replaces R25.2. Cannot code both.
G72.1	Alcoholic myopathy	If myopathy is alcoholic in origin, assign G72.1 — not M62.838
G72.0	Drug-induced myopathy	Assign G72.0 for drug-induced presentations — not M62.838
G25.82	Stiff-man syndrome	Distinct neurological syndrome — mutually exclusive
M79.1-	Myalgia	Mutually exclusive at M62 category level

Excludes 1 — R25.2 Is the Most Common Violation Risk

R25.2 (cramp and spasm) carries an Excludes 1 instruction at the M62 category level. Do not code M62.838 and R25.2 simultaneously. If the physician documents a clinical diagnosis of muscle spasm as a disorder → use M62.838. If the spasm is documented only as a symptom pending workup → R25.2 may be appropriate, but the two are mutually exclusive.

Excludes 2 — May Be Coded in Addition if Separately Present

Code	Description	Note
M79.81	Nontraumatic hematoma of muscle	Excludes 2 at M62.8 subcategory level — may code additionally if separately documented and clinically distinct from the spasm

---

📋 Clinical Overview

Muscle Spasm vs. Cramp vs. Contracture — The Critical Distinction

The M62.83x vs. R25.2 vs. M62.4x determination is a key coding decision that hinges entirely on physician documentation intent and clinical context. Coders must not infer the distinction from chart language alone — query when ambiguous.

Feature	Muscle Spasm — M62.83x	Cramp & Spasm — R25.2	Contracture — M62.4x
Code type	Disorder	Symptom	Disorder
Physician intent	Clinical diagnosis established	Undifferentiated/symptomatic	Fixed structural shortening
Duration	Variable — acute or chronic	Typically acute, transient	Persistent, fixed limitation
Resolution	With treatment or spontaneously	Often spontaneous	Requires therapy/surgery
Coding context	Established disorder; clear etiology or pattern	ER/urgent care; symptom-level documentation	Chronic muscle shortening documented

CDI Query Trigger — Spasm vs. Cramp vs. Contracture

If the physician documents only “muscle tightness”, “cramping”, or “spasm” without context establishing it as a diagnosed musculoskeletal disorder, a CDI query is warranted to clarify whether M62.838, R25.2, or another code best captures the clinical intent. The distinction affects both code selection and potential DRG grouping.

Pathophysiology

Muscle spasm represents a sustained, involuntary contraction of skeletal muscle fibers, arising from abnormal motor neuron firing or disruption of the normal calcium-mediated relaxation cycle. In healthy muscle, acetylcholine-mediated depolarization triggers a controlled contraction-relaxation cycle; spasm occurs when this cycle is disrupted — by direct nerve irritation, electrolyte imbalance (particularly calcium, magnesium, or potassium shifts), ischemia, or central/peripheral neurological dysfunction.

In the musculoskeletal context captured by M62.838, the most common mechanism is reflex spasm — a protective neuromuscular response to adjacent joint irritation, nerve root compression, or soft tissue injury. The muscle contracts reflexively to splint an area of pain or instability, which can itself become a pain generator (the classic spasm-pain-spasm cycle). This reflex arc explains why M62.838 frequently appears as an additional diagnosis to underlying spinal, joint, or neurological conditions rather than as a principal diagnosis at inpatient encounters.

Etiology

Cause	ICD-10-CM Code	Sequencing Note
Cervical radiculopathy	M54.12	Sequence the radiculopathy; M62.838 as additional for the spasm component
Lumbar radiculopathy	M54.17	Sequence radiculopathy first when driving admission
Multiple sclerosis, unspecified	G35.D	FY2026 billable MS code — replaces old standalone G35; sequence before M62.838 when MS drives admission; query for subtype specificity
Multiple sclerosis, relapsing-remitting	G35.A	Most common MS subtype; sequence before M62.838 when driving admission
Multiple sclerosis, primary progressive	G35.B0-G35.B2	Query activity status (active vs. non-active) for most specific subcode
Multiple sclerosis, secondary progressive	G35.C0-G35.C2	Query activity status (active vs. non-active) for most specific subcode
Spinal cord injury	S14.x-S34.x	Acute traumatic — spasm as sequela or additional diagnosis
Electrolyte imbalance (e.g., hypomagnesemia)	E83.42	Metabolic cause of spasm — code the electrolyte disorder additionally
Dehydration	E86.0	Systemic cause — code additionally if documented
Fibromyalgia	M79.3	Fibromyalgia-associated muscle hypertonicity — both may be coded when separately documented
Idiopathic / NOS	No additional code	M62.838 as sole or principal diagnosis

Sequencing Principle

When a causative systemic or neurological condition drives the admission and the muscle spasm is a secondary manifestation, code the underlying condition first, followed by M62.838 as the additional diagnosis, per ICD-10-CM Official Coding Guidelines. If spasm itself is the reason for the encounter, M62.838 sequences as principal.

FY2026 Change — G35 Is No Longer Billable

Effective October 1, 2025 (FY2026), G35 became a non-billable parent code. Do not submit G35 alone — it will reject. The new billable MS codes are G35.A, G35.B0-G35.B2, G35.C0-G35.C2, and G35.D (MS, unspecified). Always query for MS subtype and activity before defaulting to G35.D.

Clinical Presentation

Patients with muscle spasm at “other” sites captured by M62.838 typically present with:

• Visible or palpable muscle hardening — involuntary rigidity on exam
• Pain localized to the affected muscle group — acute or chronic pattern
• Limited range of motion of the adjacent joint or spinal segment
• Spasm on palpation — tenderness and involuntary contraction with pressure
• Postural abnormality when spasm involves cervical, periscapular, or pelvic musculature (e.g., cervical shift, elevated shoulder girdle)
• EMG findings (if performed) — spontaneous motor unit activity at rest, abnormal insertion activity

Documentation Requirements

For accurate assignment of M62.838, physician documentation should include:

1. Site specificity — the specific muscle or muscle group involved; confirms M62.838 over M62.830 (back) or M62.831 (calf)
2. Clinical diagnosis — spasm documented as a musculoskeletal disorder, not merely a symptom (distinguishes from R25.2)
3. Etiology or associated condition — underlying cause if identified (radiculopathy, neurological condition, electrolyte disturbance)
4. Acuity — acute vs. chronic vs. recurrent — relevant for E/M level selection and clinical specificity
5. Treatment rendered — manual therapy, injection, pharmacologic management — supports medical necessity for associated CPT billing

---

💰 HCC Risk Adjustment (CMS-HCC v28)

Field	Detail
CMS-HCC Model Version	v28 (2024-2025 Implementation)
HCC Assignment	❌ Not Mapped
HCC Category	N/A
RAF Coefficient	0.000
RxHCC Assignment	Not Mapped

M62.838 does not map to an HCC under CMS-HCC v28 and does not contribute to a patient’s Risk Adjustment Factor (RAF) score.

Monitor for RAF-Bearing Comorbidities

While M62.838 itself carries no HCC weight, conditions frequently associated with or causing muscle spasm often do. At every M62.838 encounter, review and ensure complete coding of:

• Multiple sclerosis (G35.D or appropriate FY2026 subtype) — CMS-HCC v28: HCC 198 / RxHCC v08: HCC 159
• Hemiplegia/hemiparesis (G81.x) — HCC-mapped in v28
• Paraplegia/quadriplegia (G82.x) — HCC-mapped
• Diabetes mellitus with neurological complications — HCC 18/19 series
• Malnutrition — if driving electrolyte imbalance leading to spasm

Do not leave risk-adjustable comorbidities undercoded. All conditions meeting UHDDS criteria for “other diagnoses” must be reported.

---

🏥 MS-DRG Assignment

MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue

DRG	Title	Est. Relative Weight*
DRG 557	Tendonitis, Myositis, and Bursitis with MCC	~1.00-1.30
DRG 558	Tendonitis, Myositis, and Bursitis with CC	~0.75-0.95
DRG 559	Tendonitis, Myositis, and Bursitis without CC/MCC	~0.55-0.75

*Approximate. Verify against IPPS FY2026 Final Rule tables.

Neurological or Systemic Etiology May Shift MDC

If the patient is admitted primarily for a neurological condition (G35.D or MS subtype, G82.x spinal cord dysfunction) and the muscle spasm is a manifestation, the neurological principal diagnosis may pull the encounter to MDC 01 (Nervous System), away from MDC 08. Always evaluate the reason for admission before assigning principal diagnosis.

---

🔗 Related ICD-10-CM Codes

Site Variants of M62.83x

Code	Description
M62.830	Muscle spasm of back
M62.831	Muscle spasm of calf
M62.838	Other muscle spasm ← This Code

Associated and Differential Diagnosis Codes

Code	Description	Coding Relevance
R25.2	Cramp and spasm	Excludes 1 — symptom code; mutually exclusive with M62.838; assign M62.838 when clinical diagnosis is established
M54.12	Radiculopathy, cervical region	Common driver of cervical paraspinal spasm; sequence before M62.838 when driving admission
M54.17	Radiculopathy, lumbar region	Common driver of lumbar-adjacent or leg spasm; sequence first when driving admission
M62.830	Muscle spasm of back	More specific — use when spasm is explicitly documented as back/paraspinal
M62.831	Muscle spasm of calf	More specific — use when spasm is explicitly documented in the calf
M62.40	Contracture of muscle, unspecified	Different disorder — chronic fixed shortening vs. acute/subacute spasm
M79.3	Fibromyalgia	May coexist with M62.838; code both when separately documented
M79.1	Myalgia	Excludes 1 at M62 category — cannot code simultaneously with M62.838
G25.82	Stiff-man syndrome	Excludes 1 — distinct neurological syndrome; mutually exclusive
E83.42	Hypomagnesemia	Metabolic cause of muscle spasm — code additionally when documented
G35.D	Multiple sclerosis, unspecified	FY2026 billable MS code (replaces standalone G35); CMS-HCC v28: HCC 198; sequence before M62.838 when MS drives admission
G35.A	Relapsing-remitting MS	FY2026 billable; most common MS subtype; query before defaulting to G35.D

---

🛠️ Commonly Associated CPT Codes

Outpatient and Physician Setting Context

The CPT codes below are associated with the evaluation and management of muscle spasm in outpatient, office, physical therapy, and pain management settings. In the inpatient setting, ICD-10-PCS procedure codes govern procedural reporting.

CPT Code	Description	Clinical Application
99213	Office or other outpatient visit, established patient, low complexity	Routine follow-up for managed muscle spasm
99214	Office or other outpatient visit, established patient, moderate complexity	New or worsening spasm with underlying condition management
97140	Manual therapy techniques (mobilization, manipulation, manual traction)	Primary treatment modality for muscle spasm in PT/chiro settings
97110	Therapeutic exercise	Strengthening and neuromuscular re-education to address spasm drivers
97124	Massage therapy	Mechanical release of muscle spasm; commonly billed in PT encounters
20552	Trigger point injection(s); single or multiple trigger point(s), 1-2 muscles	Injection of anesthetic ± corticosteroid directly into hypertonic muscle band
20553	Trigger point injection(s); single or multiple trigger point(s), 3 or more muscles	When spasm involves 3+ distinct muscle trigger points in same session
64613	Chemodenervation of neck muscle(s) (e.g., spasmodic torticollis)	Botulinum toxin injection for cervical muscle spasm/dystonia — high specificity
64646	Chemodenervation of trunk muscle(s); 1-5 muscles	Botulinum toxin for truncal muscle spasm
64647	Chemodenervation of trunk muscle(s); 6 or more muscles	Extended trunk chemodenervation

NCCI Bundling Considerations

NCCI PTP Edits — Verify Before Billing

• 20552 or 20553 (trigger point injections) performed same date as an E/M service: Modifier -25 must be appended to the E/M code when both are performed on the same date and the E/M is separately documentable beyond the procedure pre/post service.
• 97140 (manual therapy) and 97124 (massage) billed same DOS: both are timed codes — confirm total timed minutes documented support billing both; NCCI PTP edits may apply depending on provider type and setting.
• 64613 (chemodenervation, neck) and E/M same DOS: Modifier -25 required on the E/M if separately documented and medically necessary beyond the procedure.

---

🔬 ICD-10-PCS Crosswalk (Inpatient Procedures)

When M62.838 is an inpatient diagnosis and a procedure is performed, the following ICD-10-PCS sections and root operations are relevant. Full PCS codes require completion of all seven characters — consult the PCS tables for the applicable fiscal year.

PCS Section	Body System	Root Operation	Clinical Application
3 (Administration)	E (Physiological Systems)	0 (Introduction)	Intramuscular injection of pharmacologic agent (e.g., botulinum toxin, anesthetic, corticosteroid) — Body Part: specific muscle; Approach 3 (Percutaneous)
0 (Medical & Surgical)	K (Muscles)	N (Release)	Surgical release of contracted or severely spastic muscle when conservative management fails
0 (Medical & Surgical)	K (Muscles)	B (Excision)	Muscle biopsy if performed for diagnostic confirmation of underlying myopathic condition

---

💊 Coding Scenarios and Examples

---

Scenario 1 — Cervical Paraspinal Muscle Spasm, Radiculopathy-Associated (Outpatient)

Clinical Vignette: A 52-year-old male presents with right-sided neck pain and stiffness following a 3-month history of C5-C6 radiculopathy. Exam reveals visible right cervical paraspinal muscle spasm and restricted rotation. MRI confirms C5-C6 disc herniation with right nerve root compression. Physician documents “cervical radiculopathy with associated cervical muscle spasm.” Referred to physical therapy.

CPT Codes (Outpatient/Physician):

• 99214 — Office visit, established patient, moderate complexity

ICD-10-CM:

• M54.12 — Radiculopathy, cervical region (principal — driving the encounter)
• M62.838 — Other muscle spasm (additional — cervical paraspinal spasm separately documented)

Sequence the Underlying Condition First

M54.12 is the condition driving the clinical encounter. M62.838 adds specificity for the spasm component — both are appropriate when separately documented. Do not assign R25.2 when a clinical diagnosis of muscle spasm is documented.

---

Scenario 2 — Piriformis Muscle Spasm, Idiopathic (Outpatient Physical Therapy)

Clinical Vignette: A 39-year-old female presents to a physical therapy clinic with deep right buttock pain and restricted hip internal rotation. Physician referral diagnosis: “piriformis muscle spasm.” No radiculopathy documented. Treated with manual therapy, therapeutic exercise, and massage.

CPT Codes (PT Setting):

• 97140 — Manual therapy techniques, 15-minute unit
• 97110 — Therapeutic exercise, 15-minute unit
• 97124 — Massage, 15-minute unit (verify NCCI edits with 97140 same DOS)

ICD-10-CM:

• M62.838 — Other muscle spasm (piriformis is not back or calf — correctly captured under “other”)

Piriformis Spasm vs. Piriformis Syndrome

If the physician documents piriformis syndrome with sciatic nerve irritation, query whether a neurological code applies alongside M62.838. Spasm alone without nerve involvement → M62.838 as sole code is appropriate.

---

Scenario 3 — Neck Muscle Spasm, Chemodenervation with Botulinum Toxin (Outpatient)

Clinical Vignette: A 44-year-old female with chronic cervical dystonia presents for repeat botulinum toxin injections to the right sternocleidomastoid, splenius capitis, and trapezius. Physician documents “cervical muscle spasm / spasmodic torticollis.” Three muscles injected.

CPT Codes:

• 64613 — Chemodenervation of neck muscle(s), spasmodic torticollis
• 99213--25 — E/M if separately documented beyond the injection

ICD-10-CM:

• M62.838 — Other muscle spasm (cervical/neck muscles = “other” site)
• G24.3 — Spasmodic torticollis (if documented — sequence per reason for encounter)

Modifier -25 Required When E/M Billed Same Day as Injection

When 64613 and an E/M are billed on the same DOS, modifier -25 must be appended to the E/M code to confirm it was a significant, separately identifiable service beyond the pre/post injection work.

---

Scenario 4 — MS-Related Muscle Spasm, Inpatient — FY2026 Code Awareness

Clinical Vignette: A 51-year-old female with known multiple sclerosis is admitted for acute exacerbation with bilateral upper extremity muscle spasm. Neurologist documents “relapsing-remitting MS in relapse with bilateral arm spasm.” Treated with IV methylprednisolone.

Principal Diagnosis:

• G35.A — Relapsing-remitting multiple sclerosis (MS driving admission — sequences as principal; groups to MDC 01, not MDC 08)

Additional Diagnoses:

• M62.838 — Other muscle spasm (bilateral upper extremity — “other” site)

FY2026 — G35 Alone Is Invalid After 10/1/2025

G35 is no longer a valid billable code. In this scenario, the physician documented relapsing-remitting MS → G35.A is correct. If the MS subtype is not documented, G35.D (MS, unspecified) is the FY2026 replacement for old standalone G35. A CDI query for MS subtype and activity level is always appropriate before defaulting to G35.D.

---

Scenario 5 — Shoulder Girdle Muscle Spasm, Inpatient (Electrolyte Imbalance)

Clinical Vignette: A 67-year-old female is admitted for severe hypomagnesemia secondary to loop diuretic use. She develops bilateral periscapular and shoulder girdle muscle spasm during the admission. Treated with IV magnesium replacement.

Principal Diagnosis:

• E83.42 — Hypomagnesemia (driving the admission)

Additional Diagnoses:

• M62.838 — Other muscle spasm (bilateral shoulder girdle spasm — “other” site, not back or calf)

MS-DRG Assignment:

• Groups to MDC based on principal metabolic diagnosis — M62.838 as additional does not shift MDC in this scenario.

Metabolic Spasm — Sequence the Cause First

The electrolyte disturbance sequences first. M62.838 accurately captures the musculoskeletal manifestation as an additional diagnosis and supports complete clinical documentation.

---

⚠️ Coding Pitfalls and Tips

	Pitfall or Tip
❌	Do not use R25.2 when a clinical diagnosis is established — once physician documents muscle spasm as a disorder, M62.838 is correct; R25.2 is mutually exclusive (Excludes 1)
❌	Do not use M62.838 when the documented site is the back — back muscle spasm → M62.830
❌	Do not use M62.838 when the documented site is the calf — calf muscle spasm → M62.831
❌	Do not code M62.838 simultaneously with R25.2, M79.1-, G72.0, G72.1, or G25.82 — Excludes 1 at M62 category level
❌	Do not use G35 alone (FY2026) — non-billable parent since 10/1/2025; use G35.A, G35.B0-G35.B2, G35.C0-G35.C2, or G35.D
❌	Do not use M62.838 for chronic fixed muscle shortening — contracture → M62.4x
✅	Query for MS subtype and activity before defaulting to G35.D — ask the neurologist/attending to document RRMS, PPMS, or SPMS and whether currently active
✅	Query for site specificity — “muscle spasm” without location → confirm M62.830, M62.831, or M62.838
✅	Assign underlying etiology codes when identified — radiculopathy, electrolyte disturbance, MS subtype — sequence etiology first
✅	Modifier -25 required when trigger point injection (20552, 20553) or chemodenervation (64613) billed same day as E/M
✅	Sweep for HCC-bearing comorbidities — MS subtypes (HCC 198), hemiplegia, DM with complications carry RAF weight that M62.838 does not
✅	M62.838 is appropriate for piriformis, cervical, shoulder, forearm, and hand spasm — all “other” site presentations not covered by M62.830 or M62.831

---

📚 Sources

1. CMS/NCHS. ICD-10-CM Official Guidelines for Coding and Reporting, FY2026. Tabular List — M62.838; M62.83 Muscle Spasm subcategory; G35 parent code restructure effective October 1, 2025.

2. AMA. CPT Professional Edition 2026. Medicine — Physical Medicine and Rehabilitation subsection (97010-97799); Surgery — Musculoskeletal and Nervous System subsections.

3. CMS. 2025-2026 Medicare Advantage Risk Adjustment — CMS-HCC Model v28 ICD-10-CM Mappings. G35 family: HCC 198 (v28), RxHCC 159 (v08).

4. CMS. IPPS Final Rule FY2026 — MS-DRG Definitions Manual v43. MDC 08 logic tables — Tendonitis, Myositis, and Bursitis DRG grouping.

5. CMS. ICD-10-PCS Reference Manual FY2026. Section 0 (Medical & Surgical), Body System K (Muscles); Section 3 (Administration).

6. CMS. Outpatient Physical Therapy Billing and Coding Article A53065. M62.838 listed as covered ICD-10-CM diagnosis for physical therapy services.

7. CMS. NCCI Policy Manual for Medicare Services, current version. Musculoskeletal chapter and general correct coding principles.